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Finding the Fourth Proportional to 519,707.25, 779,560.88 and 125,723.25

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Solution

The fourth proportional to 519,707.25, 779,560.88 and 125,723.25 is: 188,584.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,707.25 : 779,560.88 = 125,723.25 : x
  2. Step 2: Convert to fraction form
    519,707.25/779,560.88 = 125,723.25/x
  3. Step 3: Cross multiply
    519,707.25x = 779,560.88 × 125,723.25
  4. Step 4: Simplify right side
    519,707.25x = 98,008,926,777.84
  5. Step 5: Solve for x
    x = 98,008,926,777.84/519,707.25
  6. Step 6: Final answer
    x = 188,584.88

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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.