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Finding the Fourth Proportional to 658,135.41, 987,203.12 and 159,499.41

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Solution

The fourth proportional to 658,135.41, 987,203.12 and 159,499.41 is: 239,249.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,135.41 : 987,203.12 = 159,499.41 : x
  2. Step 2: Convert to fraction form
    658,135.41/987,203.12 = 159,499.41/x
  3. Step 3: Cross multiply
    658,135.41x = 987,203.12 × 159,499.41
  4. Step 4: Simplify right side
    658,135.41x = 157,458,310,690.65
  5. Step 5: Solve for x
    x = 157,458,310,690.65/658,135.41
  6. Step 6: Final answer
    x = 239,249.11

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Half scale
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Double scale
Find fourth proportional to 658,136.41, 987,204.62 and 159,500.41
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.