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Finding the Fourth Proportional to 438,817.28, 658,089.76 and 158,297.92

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Solution

The fourth proportional to 438,817.28, 658,089.76 and 158,297.92 is: 237,397.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,817.28 : 658,089.76 = 158,297.92 : x
  2. Step 2: Convert to fraction form
    438,817.28/658,089.76 = 158,297.92/x
  3. Step 3: Cross multiply
    438,817.28x = 658,089.76 × 158,297.92
  4. Step 4: Simplify right side
    438,817.28x = 104,174,240,181.30
  5. Step 5: Solve for x
    x = 104,174,240,181.30/438,817.28
  6. Step 6: Final answer
    x = 237,397.76

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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.