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Finding the Fourth Proportional to 393,351.60, 542,685.24 and 232,125.96

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Solution

The fourth proportional to 393,351.60, 542,685.24 and 232,125.96 is: 320,251.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,351.60 : 542,685.24 = 232,125.96 : x
  2. Step 2: Convert to fraction form
    393,351.60/542,685.24 = 232,125.96/x
  3. Step 3: Cross multiply
    393,351.60x = 542,685.24 × 232,125.96
  4. Step 4: Simplify right side
    393,351.60x = 125,971,332,312.83
  5. Step 5: Solve for x
    x = 125,971,332,312.83/393,351.60
  6. Step 6: Final answer
    x = 320,251.23

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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.