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Finding the Fourth Proportional to 552,406.40, 828,626.88 and 178,432.64

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Solution

The fourth proportional to 552,406.40, 828,626.88 and 178,432.64 is: 267,654.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,406.40 : 828,626.88 = 178,432.64 : x
  2. Step 2: Convert to fraction form
    552,406.40/828,626.88 = 178,432.64/x
  3. Step 3: Cross multiply
    552,406.40x = 828,626.88 × 178,432.64
  4. Step 4: Simplify right side
    552,406.40x = 147,854,081,773.36
  5. Step 5: Solve for x
    x = 147,854,081,773.36/552,406.40
  6. Step 6: Final answer
    x = 267,654.54

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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.