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Finding the Fourth Proportional to 458,794.13, 688,191.19 and 126,370.13

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Solution

The fourth proportional to 458,794.13, 688,191.19 and 126,370.13 is: 189,555.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,794.13 : 688,191.19 = 126,370.13 : x
  2. Step 2: Convert to fraction form
    458,794.13/688,191.19 = 126,370.13/x
  3. Step 3: Cross multiply
    458,794.13x = 688,191.19 × 126,370.13
  4. Step 4: Simplify right side
    458,794.13x = 86,966,806,388.27
  5. Step 5: Solve for x
    x = 86,966,806,388.27/458,794.13
  6. Step 6: Final answer
    x = 189,555.19

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.