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Finding the Fourth Proportional to 2,363,854.68, 3,545,859.78 and 766,431

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Solution

The fourth proportional to 2,363,854.68, 3,545,859.78 and 766,431 is: 1,149,671.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,363,854.68 : 3,545,859.78 = 766,431 : x
  2. Step 2: Convert to fraction form
    2,363,854.68/3,545,859.78 = 766,431/x
  3. Step 3: Cross multiply
    2,363,854.68x = 3,545,859.78 × 766,431
  4. Step 4: Simplify right side
    2,363,854.68x = 2,717,656,857,045.18
  5. Step 5: Solve for x
    x = 2,717,656,857,045.18/2,363,854.68
  6. Step 6: Final answer
    x = 1,149,671.71

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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.