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Finding the Fourth Proportional to 5,966,393.12, 8,943,597 and 1,919,906.88

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Solution

The fourth proportional to 5,966,393.12, 8,943,597 and 1,919,906.88 is: 2,877,931.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,966,393.12 : 8,943,597 = 1,919,906.88 : x
  2. Step 2: Convert to fraction form
    5,966,393.12/8,943,597 = 1,919,906.88/x
  3. Step 3: Cross multiply
    5,966,393.12x = 8,943,597 × 1,919,906.88
  4. Step 4: Simplify right side
    5,966,393.12x = 17,170,873,412,247.36
  5. Step 5: Solve for x
    x = 17,170,873,412,247.36/5,966,393.12
  6. Step 6: Final answer
    x = 2,877,931.95

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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.