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Finding the Fourth Proportional to 687,807.77, 947,613.38 and 532,224.14

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Solution

The fourth proportional to 687,807.77, 947,613.38 and 532,224.14 is: 733,261.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,807.77 : 947,613.38 = 532,224.14 : x
  2. Step 2: Convert to fraction form
    687,807.77/947,613.38 = 532,224.14/x
  3. Step 3: Cross multiply
    687,807.77x = 947,613.38 × 532,224.14
  4. Step 4: Simplify right side
    687,807.77x = 504,342,712,815.49
  5. Step 5: Solve for x
    x = 504,342,712,815.49/687,807.77
  6. Step 6: Final answer
    x = 733,261.14

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Double scale
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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.