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Finding the Fourth Proportional to 658,400.06, 987,600.10 and 185,085.42

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Solution

The fourth proportional to 658,400.06, 987,600.10 and 185,085.42 is: 277,628.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,400.06 : 987,600.10 = 185,085.42 : x
  2. Step 2: Convert to fraction form
    658,400.06/987,600.10 = 185,085.42/x
  3. Step 3: Cross multiply
    658,400.06x = 987,600.10 × 185,085.42
  4. Step 4: Simplify right side
    658,400.06x = 182,790,378,375.12
  5. Step 5: Solve for x
    x = 182,790,378,375.12/658,400.06
  6. Step 6: Final answer
    x = 277,628.13

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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.