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Finding the Fourth Proportional to 474,505.28, 711,421.92 and 237,679.04

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Solution

The fourth proportional to 474,505.28, 711,421.92 and 237,679.04 is: 356,350.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,505.28 : 711,421.92 = 237,679.04 : x
  2. Step 2: Convert to fraction form
    474,505.28/711,421.92 = 237,679.04/x
  3. Step 3: Cross multiply
    474,505.28x = 711,421.92 × 237,679.04
  4. Step 4: Simplify right side
    474,505.28x = 169,090,078,980.56
  5. Step 5: Solve for x
    x = 169,090,078,980.56/474,505.28
  6. Step 6: Final answer
    x = 356,350.26

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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.