Home / 809,435.50-1,115,982.57-663,704.35

Finding the Fourth Proportional to 809,435.50, 1,115,982.57 and 663,704.35

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Solution

The fourth proportional to 809,435.50, 1,115,982.57 and 663,704.35 is: 915,060.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,435.50 : 1,115,982.57 = 663,704.35 : x
  2. Step 2: Convert to fraction form
    809,435.50/1,115,982.57 = 663,704.35/x
  3. Step 3: Cross multiply
    809,435.50x = 1,115,982.57 × 663,704.35
  4. Step 4: Simplify right side
    809,435.50x = 740,682,486,233.18
  5. Step 5: Solve for x
    x = 740,682,486,233.18/809,435.50
  6. Step 6: Final answer
    x = 915,060.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.