Home / 695,998.20-1,043,997.30-391,567.80

Finding the Fourth Proportional to 695,998.20, 1,043,997.30 and 391,567.80

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Solution

The fourth proportional to 695,998.20, 1,043,997.30 and 391,567.80 is: 587,351.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,998.20 : 1,043,997.30 = 391,567.80 : x
  2. Step 2: Convert to fraction form
    695,998.20/1,043,997.30 = 391,567.80/x
  3. Step 3: Cross multiply
    695,998.20x = 1,043,997.30 × 391,567.80
  4. Step 4: Simplify right side
    695,998.20x = 408,795,725,966.94
  5. Step 5: Solve for x
    x = 408,795,725,966.94/695,998.20
  6. Step 6: Final answer
    x = 587,351.70

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Half scale
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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.