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Finding the Fourth Proportional to 658,463.87, 987,696.15 and 185,149.23

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Solution

The fourth proportional to 658,463.87, 987,696.15 and 185,149.23 is: 277,723.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,463.87 : 987,696.15 = 185,149.23 : x
  2. Step 2: Convert to fraction form
    658,463.87/987,696.15 = 185,149.23/x
  3. Step 3: Cross multiply
    658,463.87x = 987,696.15 × 185,149.23
  4. Step 4: Simplify right side
    658,463.87x = 182,871,181,646.47
  5. Step 5: Solve for x
    x = 182,871,181,646.47/658,463.87
  6. Step 6: Final answer
    x = 277,723.94

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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.