Home / 649,140.20-973,710.30-538,548.20

Finding the Fourth Proportional to 649,140.20, 973,710.30 and 538,548.20

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Solution

The fourth proportional to 649,140.20, 973,710.30 and 538,548.20 is: 807,822.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,140.20 : 973,710.30 = 538,548.20 : x
  2. Step 2: Convert to fraction form
    649,140.20/973,710.30 = 538,548.20/x
  3. Step 3: Cross multiply
    649,140.20x = 973,710.30 × 538,548.20
  4. Step 4: Simplify right side
    649,140.20x = 524,389,929,386.46
  5. Step 5: Solve for x
    x = 524,389,929,386.46/649,140.20
  6. Step 6: Final answer
    x = 807,822.30

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Half scale
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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.