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Finding the Fourth Proportional to 475,079.80, 711,626.10 and 222,575.80

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Solution

The fourth proportional to 475,079.80, 711,626.10 and 222,575.80 is: 333,398.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,079.80 : 711,626.10 = 222,575.80 : x
  2. Step 2: Convert to fraction form
    475,079.80/711,626.10 = 222,575.80/x
  3. Step 3: Cross multiply
    475,079.80x = 711,626.10 × 222,575.80
  4. Step 4: Simplify right side
    475,079.80x = 158,390,748,508.38
  5. Step 5: Solve for x
    x = 158,390,748,508.38/475,079.80
  6. Step 6: Final answer
    x = 333,398.20

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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.