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Finding the Fourth Proportional to 308,052.60, 462,078.90 and 271,894.20

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Solution

The fourth proportional to 308,052.60, 462,078.90 and 271,894.20 is: 407,841.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,052.60 : 462,078.90 = 271,894.20 : x
  2. Step 2: Convert to fraction form
    308,052.60/462,078.90 = 271,894.20/x
  3. Step 3: Cross multiply
    308,052.60x = 462,078.90 × 271,894.20
  4. Step 4: Simplify right side
    308,052.60x = 125,636,572,852.38
  5. Step 5: Solve for x
    x = 125,636,572,852.38/308,052.60
  6. Step 6: Final answer
    x = 407,841.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.