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Finding the Fourth Proportional to 392,311.60, 587,679.68 and 332,082.16

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Solution

The fourth proportional to 392,311.60, 587,679.68 and 332,082.16 is: 497,456.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,311.60 : 587,679.68 = 332,082.16 : x
  2. Step 2: Convert to fraction form
    392,311.60/587,679.68 = 332,082.16/x
  3. Step 3: Cross multiply
    392,311.60x = 587,679.68 × 332,082.16
  4. Step 4: Simplify right side
    392,311.60x = 195,157,937,522.51
  5. Step 5: Solve for x
    x = 195,157,937,522.51/392,311.60
  6. Step 6: Final answer
    x = 497,456.45

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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.