Home / 779,813.70-1,169,720.55-665,652.30

Finding the Fourth Proportional to 779,813.70, 1,169,720.55 and 665,652.30

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Solution

The fourth proportional to 779,813.70, 1,169,720.55 and 665,652.30 is: 998,478.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,813.70 : 1,169,720.55 = 665,652.30 : x
  2. Step 2: Convert to fraction form
    779,813.70/1,169,720.55 = 665,652.30/x
  3. Step 3: Cross multiply
    779,813.70x = 1,169,720.55 × 665,652.30
  4. Step 4: Simplify right side
    779,813.70x = 778,627,174,464.77
  5. Step 5: Solve for x
    x = 778,627,174,464.77/779,813.70
  6. Step 6: Final answer
    x = 998,478.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.