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Finding the Fourth Proportional to 322,628.72, 482,810.40 and 265,032.26

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Solution

The fourth proportional to 322,628.72, 482,810.40 and 265,032.26 is: 396,617.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,628.72 : 482,810.40 = 265,032.26 : x
  2. Step 2: Convert to fraction form
    322,628.72/482,810.40 = 265,032.26/x
  3. Step 3: Cross multiply
    322,628.72x = 482,810.40 × 265,032.26
  4. Step 4: Simplify right side
    322,628.72x = 127,960,329,049.45
  5. Step 5: Solve for x
    x = 127,960,329,049.45/322,628.72
  6. Step 6: Final answer
    x = 396,617.91

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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.