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Finding the Fourth Proportional to 406,421.01, 560,860.92 and 225,144.68

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Solution

The fourth proportional to 406,421.01, 560,860.92 and 225,144.68 is: 310,699.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,421.01 : 560,860.92 = 225,144.68 : x
  2. Step 2: Convert to fraction form
    406,421.01/560,860.92 = 225,144.68/x
  3. Step 3: Cross multiply
    406,421.01x = 560,860.92 × 225,144.68
  4. Step 4: Simplify right side
    406,421.01x = 126,274,849,553.60
  5. Step 5: Solve for x
    x = 126,274,849,553.60/406,421.01
  6. Step 6: Final answer
    x = 310,699.61

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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.