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Finding the Fourth Proportional to 552,642.20, 828,963.30 and 178,665.20

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Solution

The fourth proportional to 552,642.20, 828,963.30 and 178,665.20 is: 267,997.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,642.20 : 828,963.30 = 178,665.20 : x
  2. Step 2: Convert to fraction form
    552,642.20/828,963.30 = 178,665.20/x
  3. Step 3: Cross multiply
    552,642.20x = 828,963.30 × 178,665.20
  4. Step 4: Simplify right side
    552,642.20x = 148,106,893,787.16
  5. Step 5: Solve for x
    x = 148,106,893,787.16/552,642.20
  6. Step 6: Final answer
    x = 267,997.80

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Similar ratio
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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.