Home / 1,280,372,992.24-1,766,916,586.20-693,662,128.24

Finding the Fourth Proportional to 1,280,372,992.24, 1,766,916,586.20 and 693,662,128.24

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Solution

The fourth proportional to 1,280,372,992.24, 1,766,916,586.20 and 693,662,128.24 is: 957,254,742.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,372,992.24 : 1,766,916,586.20 = 693,662,128.24 : x
  2. Step 2: Convert to fraction form
    1,280,372,992.24/1,766,916,586.20 = 693,662,128.24/x
  3. Step 3: Cross multiply
    1,280,372,992.24x = 1,766,916,586.20 × 693,662,128.24
  4. Step 4: Simplify right side
    1,280,372,992.24x = 1,225,643,119,606,047,488
  5. Step 5: Solve for x
    x = 1,225,643,119,606,047,488/1,280,372,992.24
  6. Step 6: Final answer
    x = 957,254,742.98

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Half scale
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Double scale
Find fourth proportional to 1,280,372,993.24, 1,766,916,587.58 and 693,662,129.24
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.