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Finding the Fourth Proportional to 497,363.10, 686,361.06 and 271,008.60

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Solution

The fourth proportional to 497,363.10, 686,361.06 and 271,008.60 is: 373,991.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,363.10 : 686,361.06 = 271,008.60 : x
  2. Step 2: Convert to fraction form
    497,363.10/686,361.06 = 271,008.60/x
  3. Step 3: Cross multiply
    497,363.10x = 686,361.06 × 271,008.60
  4. Step 4: Simplify right side
    497,363.10x = 186,009,749,965.12
  5. Step 5: Solve for x
    x = 186,009,749,965.12/497,363.10
  6. Step 6: Final answer
    x = 373,991.86

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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.