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Finding the Fourth Proportional to 885,344,551.10, 1,328,016,826.65 and 873,251,315.90

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Solution

The fourth proportional to 885,344,551.10, 1,328,016,826.65 and 873,251,315.90 is: 1,309,876,973.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,344,551.10 : 1,328,016,826.65 = 873,251,315.90 : x
  2. Step 2: Convert to fraction form
    885,344,551.10/1,328,016,826.65 = 873,251,315.90/x
  3. Step 3: Cross multiply
    885,344,551.10x = 1,328,016,826.65 × 873,251,315.90
  4. Step 4: Simplify right side
    885,344,551.10x = 1,159,692,441,409,454,848
  5. Step 5: Solve for x
    x = 1,159,692,441,409,454,848/885,344,551.10
  6. Step 6: Final answer
    x = 1,309,876,973.85

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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.