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Finding the Fourth Proportional to 5,288,461.32, 7,932,694.64 and 3,490,924.68

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Solution

The fourth proportional to 5,288,461.32, 7,932,694.64 and 3,490,924.68 is: 5,236,388.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,288,461.32 : 7,932,694.64 = 3,490,924.68 : x
  2. Step 2: Convert to fraction form
    5,288,461.32/7,932,694.64 = 3,490,924.68/x
  3. Step 3: Cross multiply
    5,288,461.32x = 7,932,694.64 × 3,490,924.68
  4. Step 4: Simplify right side
    5,288,461.32x = 27,692,439,497,679.71
  5. Step 5: Solve for x
    x = 27,692,439,497,679.71/5,288,461.32
  6. Step 6: Final answer
    x = 5,236,388.78

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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.