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Finding the Fourth Proportional to 497,804.28, 686,968.64 and 271,449.78

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Solution

The fourth proportional to 497,804.28, 686,968.64 and 271,449.78 is: 374,600.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,804.28 : 686,968.64 = 271,449.78 : x
  2. Step 2: Convert to fraction form
    497,804.28/686,968.64 = 271,449.78/x
  3. Step 3: Cross multiply
    497,804.28x = 686,968.64 × 271,449.78
  4. Step 4: Simplify right side
    497,804.28x = 186,477,486,194.90
  5. Step 5: Solve for x
    x = 186,477,486,194.90/497,804.28
  6. Step 6: Final answer
    x = 374,600.01

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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.