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Finding the Fourth Proportional to 646,714.80, 970,072.20 and 583,729.20

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Solution

The fourth proportional to 646,714.80, 970,072.20 and 583,729.20 is: 875,593.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,714.80 : 970,072.20 = 583,729.20 : x
  2. Step 2: Convert to fraction form
    646,714.80/970,072.20 = 583,729.20/x
  3. Step 3: Cross multiply
    646,714.80x = 970,072.20 × 583,729.20
  4. Step 4: Simplify right side
    646,714.80x = 566,259,469,248.24
  5. Step 5: Solve for x
    x = 566,259,469,248.24/646,714.80
  6. Step 6: Final answer
    x = 875,593.80

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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.