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Finding the Fourth Proportional to 627,076.20, 940,614.30 and 585,085.80

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Solution

The fourth proportional to 627,076.20, 940,614.30 and 585,085.80 is: 877,628.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,076.20 : 940,614.30 = 585,085.80 : x
  2. Step 2: Convert to fraction form
    627,076.20/940,614.30 = 585,085.80/x
  3. Step 3: Cross multiply
    627,076.20x = 940,614.30 × 585,085.80
  4. Step 4: Simplify right side
    627,076.20x = 550,340,070,206.94
  5. Step 5: Solve for x
    x = 550,340,070,206.94/627,076.20
  6. Step 6: Final answer
    x = 877,628.70

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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.