Home / 657,122.10-985,683.15-158,486.10

Finding the Fourth Proportional to 657,122.10, 985,683.15 and 158,486.10

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Solution

The fourth proportional to 657,122.10, 985,683.15 and 158,486.10 is: 237,729.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,122.10 : 985,683.15 = 158,486.10 : x
  2. Step 2: Convert to fraction form
    657,122.10/985,683.15 = 158,486.10/x
  3. Step 3: Cross multiply
    657,122.10x = 985,683.15 × 158,486.10
  4. Step 4: Simplify right side
    657,122.10x = 156,217,078,279.22
  5. Step 5: Solve for x
    x = 156,217,078,279.22/657,122.10
  6. Step 6: Final answer
    x = 237,729.15

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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.