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Finding the Fourth Proportional to 547,760.60, 821,640.90 and 367,357.40

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Solution

The fourth proportional to 547,760.60, 821,640.90 and 367,357.40 is: 551,036.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,760.60 : 821,640.90 = 367,357.40 : x
  2. Step 2: Convert to fraction form
    547,760.60/821,640.90 = 367,357.40/x
  3. Step 3: Cross multiply
    547,760.60x = 821,640.90 × 367,357.40
  4. Step 4: Simplify right side
    547,760.60x = 301,835,864,757.66
  5. Step 5: Solve for x
    x = 301,835,864,757.66/547,760.60
  6. Step 6: Final answer
    x = 551,036.10

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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.