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Finding the Fourth Proportional to 865,854.80, 1,194,105.96 and 543,594.92

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Solution

The fourth proportional to 865,854.80, 1,194,105.96 and 543,594.92 is: 749,675.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,854.80 : 1,194,105.96 = 543,594.92 : x
  2. Step 2: Convert to fraction form
    865,854.80/1,194,105.96 = 543,594.92/x
  3. Step 3: Cross multiply
    865,854.80x = 1,194,105.96 × 543,594.92
  4. Step 4: Simplify right side
    865,854.80x = 649,109,933,797.72
  5. Step 5: Solve for x
    x = 649,109,933,797.72/865,854.80
  6. Step 6: Final answer
    x = 749,675.27

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.