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Finding the Fourth Proportional to 464,107.16, 640,452.78 and 273,131

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Solution

The fourth proportional to 464,107.16, 640,452.78 and 273,131 is: 376,911.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,107.16 : 640,452.78 = 273,131 : x
  2. Step 2: Convert to fraction form
    464,107.16/640,452.78 = 273,131/x
  3. Step 3: Cross multiply
    464,107.16x = 640,452.78 × 273,131
  4. Step 4: Simplify right side
    464,107.16x = 174,927,508,254.18
  5. Step 5: Solve for x
    x = 174,927,508,254.18/464,107.16
  6. Step 6: Final answer
    x = 376,911.89

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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.