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Finding the Fourth Proportional to 702,145.17, 968,959.47 and 379,854.27

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Solution

The fourth proportional to 702,145.17, 968,959.47 and 379,854.27 is: 524,198.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,145.17 : 968,959.47 = 379,854.27 : x
  2. Step 2: Convert to fraction form
    702,145.17/968,959.47 = 379,854.27/x
  3. Step 3: Cross multiply
    702,145.17x = 968,959.47 × 379,854.27
  4. Step 4: Simplify right side
    702,145.17x = 368,063,392,136.44
  5. Step 5: Solve for x
    x = 368,063,392,136.44/702,145.17
  6. Step 6: Final answer
    x = 524,198.42

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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.