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Finding the Fourth Proportional to 625,894.97, 938,959.16 and 284,362.31

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Solution

The fourth proportional to 625,894.97, 938,959.16 and 284,362.31 is: 426,596.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,894.97 : 938,959.16 = 284,362.31 : x
  2. Step 2: Convert to fraction form
    625,894.97/938,959.16 = 284,362.31/x
  3. Step 3: Cross multiply
    625,894.97x = 938,959.16 × 284,362.31
  4. Step 4: Simplify right side
    625,894.97x = 267,004,589,616.65
  5. Step 5: Solve for x
    x = 267,004,589,616.65/625,894.97
  6. Step 6: Final answer
    x = 426,596.48

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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.