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Finding the Fourth Proportional to 543,012.15, 814,518.23 and 342,682.95

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Solution

The fourth proportional to 543,012.15, 814,518.23 and 342,682.95 is: 514,024.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,012.15 : 814,518.23 = 342,682.95 : x
  2. Step 2: Convert to fraction form
    543,012.15/814,518.23 = 342,682.95/x
  3. Step 3: Cross multiply
    543,012.15x = 814,518.23 × 342,682.95
  4. Step 4: Simplify right side
    543,012.15x = 279,121,508,171.76
  5. Step 5: Solve for x
    x = 279,121,508,171.76/543,012.15
  6. Step 6: Final answer
    x = 514,024.43

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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.