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Finding the Fourth Proportional to 851,885.10, 1,277,827.65 and 799,921.98

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Solution

The fourth proportional to 851,885.10, 1,277,827.65 and 799,921.98 is: 1,199,882.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,885.10 : 1,277,827.65 = 799,921.98 : x
  2. Step 2: Convert to fraction form
    851,885.10/1,277,827.65 = 799,921.98/x
  3. Step 3: Cross multiply
    851,885.10x = 1,277,827.65 × 799,921.98
  4. Step 4: Simplify right side
    851,885.10x = 1,022,162,423,886.75
  5. Step 5: Solve for x
    x = 1,022,162,423,886.75/851,885.10
  6. Step 6: Final answer
    x = 1,199,882.97

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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.