Home / 1,321,577.50-1,823,778.57-717,965.50

Finding the Fourth Proportional to 1,321,577.50, 1,823,778.57 and 717,965.50

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Solution

The fourth proportional to 1,321,577.50, 1,823,778.57 and 717,965.50 is: 990,793.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,577.50 : 1,823,778.57 = 717,965.50 : x
  2. Step 2: Convert to fraction form
    1,321,577.50/1,823,778.57 = 717,965.50/x
  3. Step 3: Cross multiply
    1,321,577.50x = 1,823,778.57 × 717,965.50
  4. Step 4: Simplify right side
    1,321,577.50x = 1,309,410,092,899.34
  5. Step 5: Solve for x
    x = 1,309,410,092,899.34/1,321,577.50
  6. Step 6: Final answer
    x = 990,793.27

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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.