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Finding the Fourth Proportional to 1,352,418, 1,866,395.16 and 748,806

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Solution

The fourth proportional to 1,352,418, 1,866,395.16 and 748,806 is: 1,033,384.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352,418 : 1,866,395.16 = 748,806 : x
  2. Step 2: Convert to fraction form
    1,352,418/1,866,395.16 = 748,806/x
  3. Step 3: Cross multiply
    1,352,418x = 1,866,395.16 × 748,806
  4. Step 4: Simplify right side
    1,352,418x = 1,397,567,894,178.96
  5. Step 5: Solve for x
    x = 1,397,567,894,178.96/1,352,418
  6. Step 6: Final answer
    x = 1,033,384.57

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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.