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Finding the Fourth Proportional to 996,920.70, 1,495,381.05 and 886,695.90

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Solution

The fourth proportional to 996,920.70, 1,495,381.05 and 886,695.90 is: 1,330,043.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,920.70 : 1,495,381.05 = 886,695.90 : x
  2. Step 2: Convert to fraction form
    996,920.70/1,495,381.05 = 886,695.90/x
  3. Step 3: Cross multiply
    996,920.70x = 1,495,381.05 × 886,695.90
  4. Step 4: Simplify right side
    996,920.70x = 1,325,948,245,972.70
  5. Step 5: Solve for x
    x = 1,325,948,245,972.70/996,920.70
  6. Step 6: Final answer
    x = 1,330,043.85

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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.