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Finding the Fourth Proportional to 486,737.60, 671,690.76 and 271,880.60

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Solution

The fourth proportional to 486,737.60, 671,690.76 and 271,880.60 is: 375,191.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,737.60 : 671,690.76 = 271,880.60 : x
  2. Step 2: Convert to fraction form
    486,737.60/671,690.76 = 271,880.60/x
  3. Step 3: Cross multiply
    486,737.60x = 671,690.76 × 271,880.60
  4. Step 4: Simplify right side
    486,737.60x = 182,619,686,843.26
  5. Step 5: Solve for x
    x = 182,619,686,843.26/486,737.60
  6. Step 6: Final answer
    x = 375,191.25

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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.