Home / 809,089.20-1,213,633.80-435,841.20

Finding the Fourth Proportional to 809,089.20, 1,213,633.80 and 435,841.20

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Solution

The fourth proportional to 809,089.20, 1,213,633.80 and 435,841.20 is: 653,761.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,089.20 : 1,213,633.80 = 435,841.20 : x
  2. Step 2: Convert to fraction form
    809,089.20/1,213,633.80 = 435,841.20/x
  3. Step 3: Cross multiply
    809,089.20x = 1,213,633.80 × 435,841.20
  4. Step 4: Simplify right side
    809,089.20x = 528,951,611,752.56
  5. Step 5: Solve for x
    x = 528,951,611,752.56/809,089.20
  6. Step 6: Final answer
    x = 653,761.80

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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.