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Finding the Fourth Proportional to 355,980.43, 534,339.69 and 238,472.92

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Solution

The fourth proportional to 355,980.43, 534,339.69 and 238,472.92 is: 357,956.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,980.43 : 534,339.69 = 238,472.92 : x
  2. Step 2: Convert to fraction form
    355,980.43/534,339.69 = 238,472.92/x
  3. Step 3: Cross multiply
    355,980.43x = 534,339.69 × 238,472.92
  4. Step 4: Simplify right side
    355,980.43x = 127,425,546,146.20
  5. Step 5: Solve for x
    x = 127,425,546,146.20/355,980.43
  6. Step 6: Final answer
    x = 357,956.60

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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.