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Finding the Fourth Proportional to 996,709.70, 1,495,064.55 and 729,020.90

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Solution

The fourth proportional to 996,709.70, 1,495,064.55 and 729,020.90 is: 1,093,531.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,709.70 : 1,495,064.55 = 729,020.90 : x
  2. Step 2: Convert to fraction form
    996,709.70/1,495,064.55 = 729,020.90/x
  3. Step 3: Cross multiply
    996,709.70x = 1,495,064.55 × 729,020.90
  4. Step 4: Simplify right side
    996,709.70x = 1,089,933,303,799.10
  5. Step 5: Solve for x
    x = 1,089,933,303,799.10/996,709.70
  6. Step 6: Final answer
    x = 1,093,531.35

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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.