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Finding the Fourth Proportional to 550,081.80, 825,122.70 and 410,113.80

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Solution

The fourth proportional to 550,081.80, 825,122.70 and 410,113.80 is: 615,170.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,081.80 : 825,122.70 = 410,113.80 : x
  2. Step 2: Convert to fraction form
    550,081.80/825,122.70 = 410,113.80/x
  3. Step 3: Cross multiply
    550,081.80x = 825,122.70 × 410,113.80
  4. Step 4: Simplify right side
    550,081.80x = 338,394,205,963.26
  5. Step 5: Solve for x
    x = 338,394,205,963.26/550,081.80
  6. Step 6: Final answer
    x = 615,170.70

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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.