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Finding the Fourth Proportional to 1,986,279.71, 2,979,447.30 and 566,336.33

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Solution

The fourth proportional to 1,986,279.71, 2,979,447.30 and 566,336.33 is: 849,512.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,279.71 : 2,979,447.30 = 566,336.33 : x
  2. Step 2: Convert to fraction form
    1,986,279.71/2,979,447.30 = 566,336.33/x
  3. Step 3: Cross multiply
    1,986,279.71x = 2,979,447.30 × 566,336.33
  4. Step 4: Simplify right side
    1,986,279.71x = 1,687,369,249,310.41
  5. Step 5: Solve for x
    x = 1,687,369,249,310.41/1,986,279.71
  6. Step 6: Final answer
    x = 849,512.40

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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.