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Finding the Fourth Proportional to 616,637.81, 850,963.59 and 344,717.16

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Solution

The fourth proportional to 616,637.81, 850,963.59 and 344,717.16 is: 475,711.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,637.81 : 850,963.59 = 344,717.16 : x
  2. Step 2: Convert to fraction form
    616,637.81/850,963.59 = 344,717.16/x
  3. Step 3: Cross multiply
    616,637.81x = 850,963.59 × 344,717.16
  4. Step 4: Simplify right side
    616,637.81x = 293,341,752,008.20
  5. Step 5: Solve for x
    x = 293,341,752,008.20/616,637.81
  6. Step 6: Final answer
    x = 475,711.59

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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.