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Finding the Fourth Proportional to 636,129.80, 954,194.70 and 531,931.40

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Solution

The fourth proportional to 636,129.80, 954,194.70 and 531,931.40 is: 797,897.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,129.80 : 954,194.70 = 531,931.40 : x
  2. Step 2: Convert to fraction form
    636,129.80/954,194.70 = 531,931.40/x
  3. Step 3: Cross multiply
    636,129.80x = 954,194.70 × 531,931.40
  4. Step 4: Simplify right side
    636,129.80x = 507,566,122,643.58
  5. Step 5: Solve for x
    x = 507,566,122,643.58/636,129.80
  6. Step 6: Final answer
    x = 797,897.10

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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.