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Finding the Fourth Proportional to 375,680.43, 518,492.14 and 232,486.61

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Solution

The fourth proportional to 375,680.43, 518,492.14 and 232,486.61 is: 320,864.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,680.43 : 518,492.14 = 232,486.61 : x
  2. Step 2: Convert to fraction form
    375,680.43/518,492.14 = 232,486.61/x
  3. Step 3: Cross multiply
    375,680.43x = 518,492.14 × 232,486.61
  4. Step 4: Simplify right side
    375,680.43x = 120,542,476,766.57
  5. Step 5: Solve for x
    x = 120,542,476,766.57/375,680.43
  6. Step 6: Final answer
    x = 320,864.40

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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.