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Finding the Fourth Proportional to 888,911.10, 1,332,329.85 and 356,168.70

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Solution

The fourth proportional to 888,911.10, 1,332,329.85 and 356,168.70 is: 533,837.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,911.10 : 1,332,329.85 = 356,168.70 : x
  2. Step 2: Convert to fraction form
    888,911.10/1,332,329.85 = 356,168.70/x
  3. Step 3: Cross multiply
    888,911.10x = 1,332,329.85 × 356,168.70
  4. Step 4: Simplify right side
    888,911.10x = 474,534,190,645.70
  5. Step 5: Solve for x
    x = 474,534,190,645.70/888,911.10
  6. Step 6: Final answer
    x = 533,837.63

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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.