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Finding the Fourth Proportional to 486,689.04, 671,623.80 and 271,832.16

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Solution

The fourth proportional to 486,689.04, 671,623.80 and 271,832.16 is: 375,124.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,689.04 : 671,623.80 = 271,832.16 : x
  2. Step 2: Convert to fraction form
    486,689.04/671,623.80 = 271,832.16/x
  3. Step 3: Cross multiply
    486,689.04x = 671,623.80 × 271,832.16
  4. Step 4: Simplify right side
    486,689.04x = 182,568,948,261.41
  5. Step 5: Solve for x
    x = 182,568,948,261.41/486,689.04
  6. Step 6: Final answer
    x = 375,124.43

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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.