Home / 823,999.60-1,235,999.40-647,052.40

Finding the Fourth Proportional to 823,999.60, 1,235,999.40 and 647,052.40

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Solution

The fourth proportional to 823,999.60, 1,235,999.40 and 647,052.40 is: 970,578.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,999.60 : 1,235,999.40 = 647,052.40 : x
  2. Step 2: Convert to fraction form
    823,999.60/1,235,999.40 = 647,052.40/x
  3. Step 3: Cross multiply
    823,999.60x = 1,235,999.40 × 647,052.40
  4. Step 4: Simplify right side
    823,999.60x = 799,756,378,168.56
  5. Step 5: Solve for x
    x = 799,756,378,168.56/823,999.60
  6. Step 6: Final answer
    x = 970,578.60

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1.5x scale

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.