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Finding the Fourth Proportional to 451,640.87, 623,206.76 and 258,061.13

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Solution

The fourth proportional to 451,640.87, 623,206.76 and 258,061.13 is: 356,091.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,640.87 : 623,206.76 = 258,061.13 : x
  2. Step 2: Convert to fraction form
    451,640.87/623,206.76 = 258,061.13/x
  3. Step 3: Cross multiply
    451,640.87x = 623,206.76 × 258,061.13
  4. Step 4: Simplify right side
    451,640.87x = 160,825,438,238.36
  5. Step 5: Solve for x
    x = 160,825,438,238.36/451,640.87
  6. Step 6: Final answer
    x = 356,091.42

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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.