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Finding the Fourth Proportional to 375,398.43, 518,095.35 and 212,061.82

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Solution

The fourth proportional to 375,398.43, 518,095.35 and 212,061.82 is: 292,671.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,398.43 : 518,095.35 = 212,061.82 : x
  2. Step 2: Convert to fraction form
    375,398.43/518,095.35 = 212,061.82/x
  3. Step 3: Cross multiply
    375,398.43x = 518,095.35 × 212,061.82
  4. Step 4: Simplify right side
    375,398.43x = 109,868,241,304.85
  5. Step 5: Solve for x
    x = 109,868,241,304.85/375,398.43
  6. Step 6: Final answer
    x = 292,671.02

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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.