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Finding the Fourth Proportional to 657,449.46, 986,174.19 and 158,813.46

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Solution

The fourth proportional to 657,449.46, 986,174.19 and 158,813.46 is: 238,220.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,449.46 : 986,174.19 = 158,813.46 : x
  2. Step 2: Convert to fraction form
    657,449.46/986,174.19 = 158,813.46/x
  3. Step 3: Cross multiply
    657,449.46x = 986,174.19 × 158,813.46
  4. Step 4: Simplify right side
    657,449.46x = 156,617,735,276.60
  5. Step 5: Solve for x
    x = 156,617,735,276.60/657,449.46
  6. Step 6: Final answer
    x = 238,220.19

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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.