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Finding the Fourth Proportional to 406,433.97, 560,871.35 and 225,141.93

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Solution

The fourth proportional to 406,433.97, 560,871.35 and 225,141.93 is: 310,691.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,433.97 : 560,871.35 = 225,141.93 : x
  2. Step 2: Convert to fraction form
    406,433.97/560,871.35 = 225,141.93/x
  3. Step 3: Cross multiply
    406,433.97x = 560,871.35 × 225,141.93
  4. Step 4: Simplify right side
    406,433.97x = 126,275,659,205.70
  5. Step 5: Solve for x
    x = 126,275,659,205.70/406,433.97
  6. Step 6: Final answer
    x = 310,691.70

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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.