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Finding the Fourth Proportional to 658,398.71, 987,598.10 and 185,084.12

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Solution

The fourth proportional to 658,398.71, 987,598.10 and 185,084.12 is: 277,626.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,398.71 : 987,598.10 = 185,084.12 : x
  2. Step 2: Convert to fraction form
    658,398.71/987,598.10 = 185,084.12/x
  3. Step 3: Cross multiply
    658,398.71x = 987,598.10 × 185,084.12
  4. Step 4: Simplify right side
    658,398.71x = 182,788,728,183.88
  5. Step 5: Solve for x
    x = 182,788,728,183.88/658,398.71
  6. Step 6: Final answer
    x = 277,626.19

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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.