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Finding the Fourth Proportional to 451,963.92, 623,708.47 and 248,018.28

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Solution

The fourth proportional to 451,963.92, 623,708.47 and 248,018.28 is: 342,264.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,963.92 : 623,708.47 = 248,018.28 : x
  2. Step 2: Convert to fraction form
    451,963.92/623,708.47 = 248,018.28/x
  3. Step 3: Cross multiply
    451,963.92x = 623,708.47 × 248,018.28
  4. Step 4: Simplify right side
    451,963.92x = 154,691,101,950.83
  5. Step 5: Solve for x
    x = 154,691,101,950.83/451,963.92
  6. Step 6: Final answer
    x = 342,264.27

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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.