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Finding the Fourth Proportional to 658,399.71, 987,599.60 and 185,085.12

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Solution

The fourth proportional to 658,399.71, 987,599.60 and 185,085.12 is: 277,627.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,399.71 : 987,599.60 = 185,085.12 : x
  2. Step 2: Convert to fraction form
    658,399.71/987,599.60 = 185,085.12/x
  3. Step 3: Cross multiply
    658,399.71x = 987,599.60 × 185,085.12
  4. Step 4: Simplify right side
    658,399.71x = 182,789,990,477.95
  5. Step 5: Solve for x
    x = 182,789,990,477.95/658,399.71
  6. Step 6: Final answer
    x = 277,627.69

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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.