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Finding the Fourth Proportional to 582,519.20, 873,778.80 and 498,538.40

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Solution

The fourth proportional to 582,519.20, 873,778.80 and 498,538.40 is: 747,807.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,519.20 : 873,778.80 = 498,538.40 : x
  2. Step 2: Convert to fraction form
    582,519.20/873,778.80 = 498,538.40/x
  3. Step 3: Cross multiply
    582,519.20x = 873,778.80 × 498,538.40
  4. Step 4: Simplify right side
    582,519.20x = 435,612,284,905.92
  5. Step 5: Solve for x
    x = 435,612,284,905.92/582,519.20
  6. Step 6: Final answer
    x = 747,807.60

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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.