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Finding the Fourth Proportional to 534,436.92, 737,013.96 and 319,542.12

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Solution

The fourth proportional to 534,436.92, 737,013.96 and 319,542.12 is: 440,663.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,436.92 : 737,013.96 = 319,542.12 : x
  2. Step 2: Convert to fraction form
    534,436.92/737,013.96 = 319,542.12/x
  3. Step 3: Cross multiply
    534,436.92x = 737,013.96 × 319,542.12
  4. Step 4: Simplify right side
    534,436.92x = 235,507,003,248.00
  5. Step 5: Solve for x
    x = 235,507,003,248.00/534,436.92
  6. Step 6: Final answer
    x = 440,663.80

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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.