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Finding the Fourth Proportional to 580,726.60, 871,089.90 and 225,823.66

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Solution

The fourth proportional to 580,726.60, 871,089.90 and 225,823.66 is: 338,735.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,726.60 : 871,089.90 = 225,823.66 : x
  2. Step 2: Convert to fraction form
    580,726.60/871,089.90 = 225,823.66/x
  3. Step 3: Cross multiply
    580,726.60x = 871,089.90 × 225,823.66
  4. Step 4: Simplify right side
    580,726.60x = 196,712,706,382.47
  5. Step 5: Solve for x
    x = 196,712,706,382.47/580,726.60
  6. Step 6: Final answer
    x = 338,735.49

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Double scale
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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.