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Finding the Fourth Proportional to 462,440.02, 638,248.44 and 268,907.61

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Solution

The fourth proportional to 462,440.02, 638,248.44 and 268,907.61 is: 371,139.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,440.02 : 638,248.44 = 268,907.61 : x
  2. Step 2: Convert to fraction form
    462,440.02/638,248.44 = 268,907.61/x
  3. Step 3: Cross multiply
    462,440.02x = 638,248.44 × 268,907.61
  4. Step 4: Simplify right side
    462,440.02x = 171,629,862,586.63
  5. Step 5: Solve for x
    x = 171,629,862,586.63/462,440.02
  6. Step 6: Final answer
    x = 371,139.73

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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.