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Finding the Fourth Proportional to 372,616.20, 514,202.22 and 217,594.13

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Solution

The fourth proportional to 372,616.20, 514,202.22 and 217,594.13 is: 300,275.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,616.20 : 514,202.22 = 217,594.13 : x
  2. Step 2: Convert to fraction form
    372,616.20/514,202.22 = 217,594.13/x
  3. Step 3: Cross multiply
    372,616.20x = 514,202.22 × 217,594.13
  4. Step 4: Simplify right side
    372,616.20x = 111,887,382,133.96
  5. Step 5: Solve for x
    x = 111,887,382,133.96/372,616.20
  6. Step 6: Final answer
    x = 300,275.14

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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.