Home / 827,646.20-1,241,469.30-329,010.20

Finding the Fourth Proportional to 827,646.20, 1,241,469.30 and 329,010.20

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Solution

The fourth proportional to 827,646.20, 1,241,469.30 and 329,010.20 is: 493,515.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,646.20 : 1,241,469.30 = 329,010.20 : x
  2. Step 2: Convert to fraction form
    827,646.20/1,241,469.30 = 329,010.20/x
  3. Step 3: Cross multiply
    827,646.20x = 1,241,469.30 × 329,010.20
  4. Step 4: Simplify right side
    827,646.20x = 408,456,062,686.86
  5. Step 5: Solve for x
    x = 408,456,062,686.86/827,646.20
  6. Step 6: Final answer
    x = 493,515.30

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Half scale
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Double scale
Find fourth proportional to 827,647.20, 1,241,470.80 and 329,011.20
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.