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Finding the Fourth Proportional to 1,192,947, 1,646,266.86 and 656,403

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Solution

The fourth proportional to 1,192,947, 1,646,266.86 and 656,403 is: 905,836.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,947 : 1,646,266.86 = 656,403 : x
  2. Step 2: Convert to fraction form
    1,192,947/1,646,266.86 = 656,403/x
  3. Step 3: Cross multiply
    1,192,947x = 1,646,266.86 × 656,403
  4. Step 4: Simplify right side
    1,192,947x = 1,080,614,505,704.58
  5. Step 5: Solve for x
    x = 1,080,614,505,704.58/1,192,947
  6. Step 6: Final answer
    x = 905,836.14

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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.