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Finding the Fourth Proportional to 375,689.18, 518,504.22 and 232,495.36

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Solution

The fourth proportional to 375,689.18, 518,504.22 and 232,495.36 is: 320,876.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,689.18 : 518,504.22 = 232,495.36 : x
  2. Step 2: Convert to fraction form
    375,689.18/518,504.22 = 232,495.36/x
  3. Step 3: Cross multiply
    375,689.18x = 518,504.22 × 232,495.36
  4. Step 4: Simplify right side
    375,689.18x = 120,549,825,290.42
  5. Step 5: Solve for x
    x = 120,549,825,290.42/375,689.18
  6. Step 6: Final answer
    x = 320,876.49

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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.