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Finding the Fourth Proportional to 406,448.52, 560,898.86 and 225,172.22

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Solution

The fourth proportional to 406,448.52, 560,898.86 and 225,172.22 is: 310,737.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,448.52 : 560,898.86 = 225,172.22 : x
  2. Step 2: Convert to fraction form
    406,448.52/560,898.86 = 225,172.22/x
  3. Step 3: Cross multiply
    406,448.52x = 560,898.86 × 225,172.22
  4. Step 4: Simplify right side
    406,448.52x = 126,298,841,501.67
  5. Step 5: Solve for x
    x = 126,298,841,501.67/406,448.52
  6. Step 6: Final answer
    x = 310,737.61

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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.