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Finding the Fourth Proportional to 462,791.87, 638,640.01 and 258,843.18

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Solution

The fourth proportional to 462,791.87, 638,640.01 and 258,843.18 is: 357,196.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,791.87 : 638,640.01 = 258,843.18 : x
  2. Step 2: Convert to fraction form
    462,791.87/638,640.01 = 258,843.18/x
  3. Step 3: Cross multiply
    462,791.87x = 638,640.01 × 258,843.18
  4. Step 4: Simplify right side
    462,791.87x = 165,307,611,063.63
  5. Step 5: Solve for x
    x = 165,307,611,063.63/462,791.87
  6. Step 6: Final answer
    x = 357,196.45

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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.