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Finding the Fourth Proportional to 615,386.10, 923,079.15 and 532,442.10

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Solution

The fourth proportional to 615,386.10, 923,079.15 and 532,442.10 is: 798,663.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,386.10 : 923,079.15 = 532,442.10 : x
  2. Step 2: Convert to fraction form
    615,386.10/923,079.15 = 532,442.10/x
  3. Step 3: Cross multiply
    615,386.10x = 923,079.15 × 532,442.10
  4. Step 4: Simplify right side
    615,386.10x = 491,486,201,092.22
  5. Step 5: Solve for x
    x = 491,486,201,092.22/615,386.10
  6. Step 6: Final answer
    x = 798,663.15

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Half scale
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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.