Home / 656,889.12-985,333.68-158,253.12

Finding the Fourth Proportional to 656,889.12, 985,333.68 and 158,253.12

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Solution

The fourth proportional to 656,889.12, 985,333.68 and 158,253.12 is: 237,379.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,889.12 : 985,333.68 = 158,253.12 : x
  2. Step 2: Convert to fraction form
    656,889.12/985,333.68 = 158,253.12/x
  3. Step 3: Cross multiply
    656,889.12x = 985,333.68 × 158,253.12
  4. Step 4: Simplify right side
    656,889.12x = 155,932,129,101.08
  5. Step 5: Solve for x
    x = 155,932,129,101.08/656,889.12
  6. Step 6: Final answer
    x = 237,379.68

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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.