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Finding the Fourth Proportional to 3,571,691.76, 4,929,714.57 and 2,196,219.12

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Solution

The fourth proportional to 3,571,691.76, 4,929,714.57 and 2,196,219.12 is: 3,031,261.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,571,691.76 : 4,929,714.57 = 2,196,219.12 : x
  2. Step 2: Convert to fraction form
    3,571,691.76/4,929,714.57 = 2,196,219.12/x
  3. Step 3: Cross multiply
    3,571,691.76x = 4,929,714.57 × 2,196,219.12
  4. Step 4: Simplify right side
    3,571,691.76x = 10,826,733,394,776.58
  5. Step 5: Solve for x
    x = 10,826,733,394,776.58/3,571,691.76
  6. Step 6: Final answer
    x = 3,031,261.97

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1.5x scale

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.