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Finding the Fourth Proportional to 547,797.10, 821,695.65 and 153,761.90

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Solution

The fourth proportional to 547,797.10, 821,695.65 and 153,761.90 is: 230,642.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,797.10 : 821,695.65 = 153,761.90 : x
  2. Step 2: Convert to fraction form
    547,797.10/821,695.65 = 153,761.90/x
  3. Step 3: Cross multiply
    547,797.10x = 821,695.65 × 153,761.90
  4. Step 4: Simplify right side
    547,797.10x = 126,345,484,365.74
  5. Step 5: Solve for x
    x = 126,345,484,365.74/547,797.10
  6. Step 6: Final answer
    x = 230,642.85

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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.