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Finding the Fourth Proportional to 1,352,447.62, 1,866,377.77 and 748,835.62

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Solution

The fourth proportional to 1,352,447.62, 1,866,377.77 and 748,835.62 is: 1,033,393.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352,447.62 : 1,866,377.77 = 748,835.62 : x
  2. Step 2: Convert to fraction form
    1,352,447.62/1,866,377.77 = 748,835.62/x
  3. Step 3: Cross multiply
    1,352,447.62x = 1,866,377.77 × 748,835.62
  4. Step 4: Simplify right side
    1,352,447.62x = 1,397,610,154,552.17
  5. Step 5: Solve for x
    x = 1,397,610,154,552.17/1,352,447.62
  6. Step 6: Final answer
    x = 1,033,393.19

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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.