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Finding the Fourth Proportional to 478,740.92, 718,033.61 and 226,020.92

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Solution

The fourth proportional to 478,740.92, 718,033.61 and 226,020.92 is: 338,994.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,740.92 : 718,033.61 = 226,020.92 : x
  2. Step 2: Convert to fraction form
    478,740.92/718,033.61 = 226,020.92/x
  3. Step 3: Cross multiply
    478,740.92x = 718,033.61 × 226,020.92
  4. Step 4: Simplify right side
    478,740.92x = 162,290,614,098.01
  5. Step 5: Solve for x
    x = 162,290,614,098.01/478,740.92
  6. Step 6: Final answer
    x = 338,994.66

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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.