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Finding the Fourth Proportional to 497,988.01, 687,225.62 and 271,638.37

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Solution

The fourth proportional to 497,988.01, 687,225.62 and 271,638.37 is: 374,862.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,988.01 : 687,225.62 = 271,638.37 : x
  2. Step 2: Convert to fraction form
    497,988.01/687,225.62 = 271,638.37/x
  3. Step 3: Cross multiply
    497,988.01x = 687,225.62 × 271,638.37
  4. Step 4: Simplify right side
    497,988.01x = 186,676,846,200.07
  5. Step 5: Solve for x
    x = 186,676,846,200.07/497,988.01
  6. Step 6: Final answer
    x = 374,862.13

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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.