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Finding the Fourth Proportional to 896,968.48, 1,342,766.16 and 865,067.20

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Solution

The fourth proportional to 896,968.48, 1,342,766.16 and 865,067.20 is: 1,295,009.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,968.48 : 1,342,766.16 = 865,067.20 : x
  2. Step 2: Convert to fraction form
    896,968.48/1,342,766.16 = 865,067.20/x
  3. Step 3: Cross multiply
    896,968.48x = 1,342,766.16 × 865,067.20
  4. Step 4: Simplify right side
    896,968.48x = 1,161,582,962,285.95
  5. Step 5: Solve for x
    x = 1,161,582,962,285.95/896,968.48
  6. Step 6: Final answer
    x = 1,295,009.79

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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.