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Finding the Fourth Proportional to 657,865.60, 986,798.40 and 159,229.60

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Solution

The fourth proportional to 657,865.60, 986,798.40 and 159,229.60 is: 238,844.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,865.60 : 986,798.40 = 159,229.60 : x
  2. Step 2: Convert to fraction form
    657,865.60/986,798.40 = 159,229.60/x
  3. Step 3: Cross multiply
    657,865.60x = 986,798.40 × 159,229.60
  4. Step 4: Simplify right side
    657,865.60x = 157,127,514,512.64
  5. Step 5: Solve for x
    x = 157,127,514,512.64/657,865.60
  6. Step 6: Final answer
    x = 238,844.40

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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.