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Finding the Fourth Proportional to 2,847,930, 4,272,594.87 and 853,386

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Solution

The fourth proportional to 2,847,930, 4,272,594.87 and 853,386 is: 1,280,288.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,847,930 : 4,272,594.87 = 853,386 : x
  2. Step 2: Convert to fraction form
    2,847,930/4,272,594.87 = 853,386/x
  3. Step 3: Cross multiply
    2,847,930x = 4,272,594.87 × 853,386
  4. Step 4: Simplify right side
    2,847,930x = 3,646,172,645,729.82
  5. Step 5: Solve for x
    x = 3,646,172,645,729.82/2,847,930
  6. Step 6: Final answer
    x = 1,280,288.72

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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.