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Finding the Fourth Proportional to 1,093,865.65, 1,637,934.31 and 879,494.29

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Solution

The fourth proportional to 1,093,865.65, 1,637,934.31 and 879,494.29 is: 1,316,938.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093,865.65 : 1,637,934.31 = 879,494.29 : x
  2. Step 2: Convert to fraction form
    1,093,865.65/1,637,934.31 = 879,494.29/x
  3. Step 3: Cross multiply
    1,093,865.65x = 1,637,934.31 × 879,494.29
  4. Step 4: Simplify right side
    1,093,865.65x = 1,440,553,873,040.09
  5. Step 5: Solve for x
    x = 1,440,553,873,040.09/1,093,865.65
  6. Step 6: Final answer
    x = 1,316,938.58

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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.