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Finding the Fourth Proportional to 371,395.17, 515,147.45 and 361,551.32

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Solution

The fourth proportional to 371,395.17, 515,147.45 and 361,551.32 is: 501,493.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,395.17 : 515,147.45 = 361,551.32 : x
  2. Step 2: Convert to fraction form
    371,395.17/515,147.45 = 361,551.32/x
  3. Step 3: Cross multiply
    371,395.17x = 515,147.45 × 361,551.32
  4. Step 4: Simplify right side
    371,395.17x = 186,252,236,158.64
  5. Step 5: Solve for x
    x = 186,252,236,158.64/371,395.17
  6. Step 6: Final answer
    x = 501,493.43

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.