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Finding the Fourth Proportional to 615,386.60, 923,079.90 and 532,442.60

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Solution

The fourth proportional to 615,386.60, 923,079.90 and 532,442.60 is: 798,663.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,386.60 : 923,079.90 = 532,442.60 : x
  2. Step 2: Convert to fraction form
    615,386.60/923,079.90 = 532,442.60/x
  3. Step 3: Cross multiply
    615,386.60x = 923,079.90 × 532,442.60
  4. Step 4: Simplify right side
    615,386.60x = 491,487,061,963.74
  5. Step 5: Solve for x
    x = 491,487,061,963.74/615,386.60
  6. Step 6: Final answer
    x = 798,663.90

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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.