Home / 827,046.30-1,240,569.45-543,611.10

Finding the Fourth Proportional to 827,046.30, 1,240,569.45 and 543,611.10

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Solution

The fourth proportional to 827,046.30, 1,240,569.45 and 543,611.10 is: 815,416.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,046.30 : 1,240,569.45 = 543,611.10 : x
  2. Step 2: Convert to fraction form
    827,046.30/1,240,569.45 = 543,611.10/x
  3. Step 3: Cross multiply
    827,046.30x = 1,240,569.45 × 543,611.10
  4. Step 4: Simplify right side
    827,046.30x = 674,387,323,340.90
  5. Step 5: Solve for x
    x = 674,387,323,340.90/827,046.30
  6. Step 6: Final answer
    x = 815,416.65

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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.