Home / 657,479.20-986,218.80-283,502.20

Finding the Fourth Proportional to 657,479.20, 986,218.80 and 283,502.20

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Solution

The fourth proportional to 657,479.20, 986,218.80 and 283,502.20 is: 425,253.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,479.20 : 986,218.80 = 283,502.20 : x
  2. Step 2: Convert to fraction form
    657,479.20/986,218.80 = 283,502.20/x
  3. Step 3: Cross multiply
    657,479.20x = 986,218.80 × 283,502.20
  4. Step 4: Simplify right side
    657,479.20x = 279,595,199,481.36
  5. Step 5: Solve for x
    x = 279,595,199,481.36/657,479.20
  6. Step 6: Final answer
    x = 425,253.30

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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.