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Finding the Fourth Proportional to 580,936.20, 871,404.30 and 487,624.20

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Solution

The fourth proportional to 580,936.20, 871,404.30 and 487,624.20 is: 731,436.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,936.20 : 871,404.30 = 487,624.20 : x
  2. Step 2: Convert to fraction form
    580,936.20/871,404.30 = 487,624.20/x
  3. Step 3: Cross multiply
    580,936.20x = 871,404.30 × 487,624.20
  4. Step 4: Simplify right side
    580,936.20x = 424,917,824,664.06
  5. Step 5: Solve for x
    x = 424,917,824,664.06/580,936.20
  6. Step 6: Final answer
    x = 731,436.30

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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.