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Finding the Fourth Proportional to 538,302.40, 807,453.60 and 527,243.20

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Solution

The fourth proportional to 538,302.40, 807,453.60 and 527,243.20 is: 790,864.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,302.40 : 807,453.60 = 527,243.20 : x
  2. Step 2: Convert to fraction form
    538,302.40/807,453.60 = 527,243.20/x
  3. Step 3: Cross multiply
    538,302.40x = 807,453.60 × 527,243.20
  4. Step 4: Simplify right side
    538,302.40x = 425,724,419,915.52
  5. Step 5: Solve for x
    x = 425,724,419,915.52/538,302.40
  6. Step 6: Final answer
    x = 790,864.80

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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.