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Finding the Fourth Proportional to 658,509.08, 987,763.59 and 185,194.40

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Solution

The fourth proportional to 658,509.08, 987,763.59 and 185,194.40 is: 277,791.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,509.08 : 987,763.59 = 185,194.40 : x
  2. Step 2: Convert to fraction form
    658,509.08/987,763.59 = 185,194.40/x
  3. Step 3: Cross multiply
    658,509.08x = 987,763.59 × 185,194.40
  4. Step 4: Simplify right side
    658,509.08x = 182,928,280,453.08
  5. Step 5: Solve for x
    x = 182,928,280,453.08/658,509.08
  6. Step 6: Final answer
    x = 277,791.59

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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.