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Finding the Fourth Proportional to 406,867.03, 561,475.50 and 225,574.30

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Solution

The fourth proportional to 406,867.03, 561,475.50 and 225,574.30 is: 311,291.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,867.03 : 561,475.50 = 225,574.30 : x
  2. Step 2: Convert to fraction form
    406,867.03/561,475.50 = 225,574.30/x
  3. Step 3: Cross multiply
    406,867.03x = 561,475.50 × 225,574.30
  4. Step 4: Simplify right side
    406,867.03x = 126,654,442,879.65
  5. Step 5: Solve for x
    x = 126,654,442,879.65/406,867.03
  6. Step 6: Final answer
    x = 311,291.98

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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.