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Finding the Fourth Proportional to 657,488.70, 986,233.05 and 283,511.70

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Solution

The fourth proportional to 657,488.70, 986,233.05 and 283,511.70 is: 425,267.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,488.70 : 986,233.05 = 283,511.70 : x
  2. Step 2: Convert to fraction form
    657,488.70/986,233.05 = 283,511.70/x
  3. Step 3: Cross multiply
    657,488.70x = 986,233.05 × 283,511.70
  4. Step 4: Simplify right side
    657,488.70x = 279,608,608,601.69
  5. Step 5: Solve for x
    x = 279,608,608,601.69/657,488.70
  6. Step 6: Final answer
    x = 425,267.55

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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.