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Finding the Fourth Proportional to 543,023.70, 814,535.55 and 149,039.70

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Solution

The fourth proportional to 543,023.70, 814,535.55 and 149,039.70 is: 223,559.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,023.70 : 814,535.55 = 149,039.70 : x
  2. Step 2: Convert to fraction form
    543,023.70/814,535.55 = 149,039.70/x
  3. Step 3: Cross multiply
    543,023.70x = 814,535.55 × 149,039.70
  4. Step 4: Simplify right side
    543,023.70x = 121,398,134,011.34
  5. Step 5: Solve for x
    x = 121,398,134,011.34/543,023.70
  6. Step 6: Final answer
    x = 223,559.55

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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.