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Finding the Fourth Proportional to 827,244.10, 1,240,866.15 and 543,808.90

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Solution

The fourth proportional to 827,244.10, 1,240,866.15 and 543,808.90 is: 815,713.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,244.10 : 1,240,866.15 = 543,808.90 : x
  2. Step 2: Convert to fraction form
    827,244.10/1,240,866.15 = 543,808.90/x
  3. Step 3: Cross multiply
    827,244.10x = 1,240,866.15 × 543,808.90
  4. Step 4: Simplify right side
    827,244.10x = 674,794,056,078.74
  5. Step 5: Solve for x
    x = 674,794,056,078.74/827,244.10
  6. Step 6: Final answer
    x = 815,713.35

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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.