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Finding the Fourth Proportional to 1,127,650.85, 1,692,919.71 and 968,743.43

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Solution

The fourth proportional to 1,127,650.85, 1,692,919.71 and 968,743.43 is: 1,454,355.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,650.85 : 1,692,919.71 = 968,743.43 : x
  2. Step 2: Convert to fraction form
    1,127,650.85/1,692,919.71 = 968,743.43/x
  3. Step 3: Cross multiply
    1,127,650.85x = 1,692,919.71 × 968,743.43
  4. Step 4: Simplify right side
    1,127,650.85x = 1,640,004,844,463.86
  5. Step 5: Solve for x
    x = 1,640,004,844,463.86/1,127,650.85
  6. Step 6: Final answer
    x = 1,454,355.17

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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.