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Finding the Fourth Proportional to 291,292.60, 401,294.60 and 277,839.80

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Solution

The fourth proportional to 291,292.60, 401,294.60 and 277,839.80 is: 382,761.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,292.60 : 401,294.60 = 277,839.80 : x
  2. Step 2: Convert to fraction form
    291,292.60/401,294.60 = 277,839.80/x
  3. Step 3: Cross multiply
    291,292.60x = 401,294.60 × 277,839.80
  4. Step 4: Simplify right side
    291,292.60x = 111,495,611,405.08
  5. Step 5: Solve for x
    x = 111,495,611,405.08/291,292.60
  6. Step 6: Final answer
    x = 382,761.56

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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.