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Finding the Fourth Proportional to 1,926,616.46, 2,658,790.71 and 1,067,256.68

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Solution

The fourth proportional to 1,926,616.46, 2,658,790.71 and 1,067,256.68 is: 1,472,847.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926,616.46 : 2,658,790.71 = 1,067,256.68 : x
  2. Step 2: Convert to fraction form
    1,926,616.46/2,658,790.71 = 1,067,256.68/x
  3. Step 3: Cross multiply
    1,926,616.46x = 2,658,790.71 × 1,067,256.68
  4. Step 4: Simplify right side
    1,926,616.46x = 2,837,612,132,675.49
  5. Step 5: Solve for x
    x = 2,837,612,132,675.49/1,926,616.46
  6. Step 6: Final answer
    x = 1,472,847.45

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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.