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Finding the Fourth Proportional to 438,712.92, 605,423.94 and 237,508.92

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Solution

The fourth proportional to 438,712.92, 605,423.94 and 237,508.92 is: 327,762.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,712.92 : 605,423.94 = 237,508.92 : x
  2. Step 2: Convert to fraction form
    438,712.92/605,423.94 = 237,508.92/x
  3. Step 3: Cross multiply
    438,712.92x = 605,423.94 × 237,508.92
  4. Step 4: Simplify right side
    438,712.92x = 143,793,586,131.55
  5. Step 5: Solve for x
    x = 143,793,586,131.55/438,712.92
  6. Step 6: Final answer
    x = 327,762.37

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Similar ratio
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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.