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Finding the Fourth Proportional to 406,472.80, 560,899.53 and 225,192.37

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Solution

The fourth proportional to 406,472.80, 560,899.53 and 225,192.37 is: 310,747.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,472.80 : 560,899.53 = 225,192.37 : x
  2. Step 2: Convert to fraction form
    406,472.80/560,899.53 = 225,192.37/x
  3. Step 3: Cross multiply
    406,472.80x = 560,899.53 × 225,192.37
  4. Step 4: Simplify right side
    406,472.80x = 126,310,294,492.59
  5. Step 5: Solve for x
    x = 126,310,294,492.59/406,472.80
  6. Step 6: Final answer
    x = 310,747.22

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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.