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Finding the Fourth Proportional to 519,744.75, 779,617.14 and 125,760.75

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Solution

The fourth proportional to 519,744.75, 779,617.14 and 125,760.75 is: 188,641.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,744.75 : 779,617.14 = 125,760.75 : x
  2. Step 2: Convert to fraction form
    519,744.75/779,617.14 = 125,760.75/x
  3. Step 3: Cross multiply
    519,744.75x = 779,617.14 × 125,760.75
  4. Step 4: Simplify right side
    519,744.75x = 98,045,236,239.26
  5. Step 5: Solve for x
    x = 98,045,236,239.26/519,744.75
  6. Step 6: Final answer
    x = 188,641.13

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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.