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Finding the Fourth Proportional to 469,926.38, 648,481.02 and 255,061.87

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Solution

The fourth proportional to 469,926.38, 648,481.02 and 255,061.87 is: 351,975.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,926.38 : 648,481.02 = 255,061.87 : x
  2. Step 2: Convert to fraction form
    469,926.38/648,481.02 = 255,061.87/x
  3. Step 3: Cross multiply
    469,926.38x = 648,481.02 × 255,061.87
  4. Step 4: Simplify right side
    469,926.38x = 165,402,781,620.71
  5. Step 5: Solve for x
    x = 165,402,781,620.71/469,926.38
  6. Step 6: Final answer
    x = 351,975.94

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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.