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Finding the Fourth Proportional to 1,042,812, 1,439,080.56 and 565,884

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Solution

The fourth proportional to 1,042,812, 1,439,080.56 and 565,884 is: 780,919.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,812 : 1,439,080.56 = 565,884 : x
  2. Step 2: Convert to fraction form
    1,042,812/1,439,080.56 = 565,884/x
  3. Step 3: Cross multiply
    1,042,812x = 1,439,080.56 × 565,884
  4. Step 4: Simplify right side
    1,042,812x = 814,352,663,615.04
  5. Step 5: Solve for x
    x = 814,352,663,615.04/1,042,812
  6. Step 6: Final answer
    x = 780,919.92

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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.