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Finding the Fourth Proportional to 406,726.39, 561,316.04 and 225,495.17

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Solution

The fourth proportional to 406,726.39, 561,316.04 and 225,495.17 is: 311,201.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,726.39 : 561,316.04 = 225,495.17 : x
  2. Step 2: Convert to fraction form
    406,726.39/561,316.04 = 225,495.17/x
  3. Step 3: Cross multiply
    406,726.39x = 561,316.04 × 225,495.17
  4. Step 4: Simplify right side
    406,726.39x = 126,574,055,863.53
  5. Step 5: Solve for x
    x = 126,574,055,863.53/406,726.39
  6. Step 6: Final answer
    x = 311,201.98

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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.