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Finding the Fourth Proportional to 662,982.60, 994,473.90 and 411,040.20

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Solution

The fourth proportional to 662,982.60, 994,473.90 and 411,040.20 is: 616,560.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,982.60 : 994,473.90 = 411,040.20 : x
  2. Step 2: Convert to fraction form
    662,982.60/994,473.90 = 411,040.20/x
  3. Step 3: Cross multiply
    662,982.60x = 994,473.90 × 411,040.20
  4. Step 4: Simplify right side
    662,982.60x = 408,768,750,750.78
  5. Step 5: Solve for x
    x = 408,768,750,750.78/662,982.60
  6. Step 6: Final answer
    x = 616,560.30

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Double scale
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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.