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Finding the Fourth Proportional to 508,266.60, 701,397.27 and 281,912.10

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Solution

The fourth proportional to 508,266.60, 701,397.27 and 281,912.10 is: 389,032.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,266.60 : 701,397.27 = 281,912.10 : x
  2. Step 2: Convert to fraction form
    508,266.60/701,397.27 = 281,912.10/x
  3. Step 3: Cross multiply
    508,266.60x = 701,397.27 × 281,912.10
  4. Step 4: Simplify right side
    508,266.60x = 197,732,377,319.97
  5. Step 5: Solve for x
    x = 197,732,377,319.97/508,266.60
  6. Step 6: Final answer
    x = 389,032.80

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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.