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Finding the Fourth Proportional to 552,171.60, 828,257.40 and 542,840.40

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Solution

The fourth proportional to 552,171.60, 828,257.40 and 542,840.40 is: 814,260.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,171.60 : 828,257.40 = 542,840.40 : x
  2. Step 2: Convert to fraction form
    552,171.60/828,257.40 = 542,840.40/x
  3. Step 3: Cross multiply
    552,171.60x = 828,257.40 × 542,840.40
  4. Step 4: Simplify right side
    552,171.60x = 449,611,578,318.96
  5. Step 5: Solve for x
    x = 449,611,578,318.96/552,171.60
  6. Step 6: Final answer
    x = 814,260.60

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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.