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Finding the Fourth Proportional to 406,411.80, 560,841.96 and 222,648.88

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Solution

The fourth proportional to 406,411.80, 560,841.96 and 222,648.88 is: 307,251.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,411.80 : 560,841.96 = 222,648.88 : x
  2. Step 2: Convert to fraction form
    406,411.80/560,841.96 = 222,648.88/x
  3. Step 3: Cross multiply
    406,411.80x = 560,841.96 × 222,648.88
  4. Step 4: Simplify right side
    406,411.80x = 124,870,834,251.01
  5. Step 5: Solve for x
    x = 124,870,834,251.01/406,411.80
  6. Step 6: Final answer
    x = 307,251.99

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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.