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Finding the Fourth Proportional to 372,912.16, 514,616.12 and 203,146.24

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Solution

The fourth proportional to 372,912.16, 514,616.12 and 203,146.24 is: 280,340.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,912.16 : 514,616.12 = 203,146.24 : x
  2. Step 2: Convert to fraction form
    372,912.16/514,616.12 = 203,146.24/x
  3. Step 3: Cross multiply
    372,912.16x = 514,616.12 × 203,146.24
  4. Step 4: Simplify right side
    372,912.16x = 104,542,329,821.39
  5. Step 5: Solve for x
    x = 104,542,329,821.39/372,912.16
  6. Step 6: Final answer
    x = 280,340.36

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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.