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Finding the Fourth Proportional to 665,390.10, 998,085.15 and 244,611.30

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Solution

The fourth proportional to 665,390.10, 998,085.15 and 244,611.30 is: 366,916.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,390.10 : 998,085.15 = 244,611.30 : x
  2. Step 2: Convert to fraction form
    665,390.10/998,085.15 = 244,611.30/x
  3. Step 3: Cross multiply
    665,390.10x = 998,085.15 × 244,611.30
  4. Step 4: Simplify right side
    665,390.10x = 244,142,906,052.20
  5. Step 5: Solve for x
    x = 244,142,906,052.20/665,390.10
  6. Step 6: Final answer
    x = 366,916.95

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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.