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Finding the Fourth Proportional to 1,226,383.74, 1,839,948.84 and 627,765.12

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Solution

The fourth proportional to 1,226,383.74, 1,839,948.84 and 627,765.12 is: 941,838.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,383.74 : 1,839,948.84 = 627,765.12 : x
  2. Step 2: Convert to fraction form
    1,226,383.74/1,839,948.84 = 627,765.12/x
  3. Step 3: Cross multiply
    1,226,383.74x = 1,839,948.84 × 627,765.12
  4. Step 4: Simplify right side
    1,226,383.74x = 1,155,055,704,336.46
  5. Step 5: Solve for x
    x = 1,155,055,704,336.46/1,226,383.74
  6. Step 6: Final answer
    x = 941,838.73

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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.