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Finding the Fourth Proportional to 828,661.80, 1,163,275.80 and 828,661.80

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Solution

The fourth proportional to 828,661.80, 1,163,275.80 and 828,661.80 is: 1,163,275.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,661.80 : 1,163,275.80 = 828,661.80 : x
  2. Step 2: Convert to fraction form
    828,661.80/1,163,275.80 = 828,661.80/x
  3. Step 3: Cross multiply
    828,661.80x = 1,163,275.80 × 828,661.80
  4. Step 4: Simplify right side
    828,661.80x = 963,962,218,324.44
  5. Step 5: Solve for x
    x = 963,962,218,324.44/828,661.80
  6. Step 6: Final answer
    x = 1,163,275.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.