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Finding the Fourth Proportional to 375,670.31, 518,478.17 and 232,476.48

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Solution

The fourth proportional to 375,670.31, 518,478.17 and 232,476.48 is: 320,850.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,670.31 : 518,478.17 = 232,476.48 : x
  2. Step 2: Convert to fraction form
    375,670.31/518,478.17 = 232,476.48/x
  3. Step 3: Cross multiply
    375,670.31x = 518,478.17 × 232,476.48
  4. Step 4: Simplify right side
    375,670.31x = 120,533,978,756.06
  5. Step 5: Solve for x
    x = 120,533,978,756.06/375,670.31
  6. Step 6: Final answer
    x = 320,850.43

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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.