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Finding the Fourth Proportional to 406,398.48, 560,805.23 and 225,099.83

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Solution

The fourth proportional to 406,398.48, 560,805.23 and 225,099.83 is: 310,624.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,398.48 : 560,805.23 = 225,099.83 : x
  2. Step 2: Convert to fraction form
    406,398.48/560,805.23 = 225,099.83/x
  3. Step 3: Cross multiply
    406,398.48x = 560,805.23 × 225,099.83
  4. Step 4: Simplify right side
    406,398.48x = 126,237,158,006.59
  5. Step 5: Solve for x
    x = 126,237,158,006.59/406,398.48
  6. Step 6: Final answer
    x = 310,624.09

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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.