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Finding the Fourth Proportional to 646,843.80, 970,265.70 and 541,867.80

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Solution

The fourth proportional to 646,843.80, 970,265.70 and 541,867.80 is: 812,801.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,843.80 : 970,265.70 = 541,867.80 : x
  2. Step 2: Convert to fraction form
    646,843.80/970,265.70 = 541,867.80/x
  3. Step 3: Cross multiply
    646,843.80x = 970,265.70 × 541,867.80
  4. Step 4: Simplify right side
    646,843.80x = 525,755,740,274.46
  5. Step 5: Solve for x
    x = 525,755,740,274.46/646,843.80
  6. Step 6: Final answer
    x = 812,801.70

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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.