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Finding the Fourth Proportional to 408,921.01, 613,934.64 and 282,246.31

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Solution

The fourth proportional to 408,921.01, 613,934.64 and 282,246.31 is: 423,751.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,921.01 : 613,934.64 = 282,246.31 : x
  2. Step 2: Convert to fraction form
    408,921.01/613,934.64 = 282,246.31/x
  3. Step 3: Cross multiply
    408,921.01x = 613,934.64 × 282,246.31
  4. Step 4: Simplify right side
    408,921.01x = 173,280,786,721.18
  5. Step 5: Solve for x
    x = 173,280,786,721.18/408,921.01
  6. Step 6: Final answer
    x = 423,751.24

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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.