Home / 881,110.20-1,321,665.30-821,623.80

Finding the Fourth Proportional to 881,110.20, 1,321,665.30 and 821,623.80

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Solution

The fourth proportional to 881,110.20, 1,321,665.30 and 821,623.80 is: 1,232,435.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,110.20 : 1,321,665.30 = 821,623.80 : x
  2. Step 2: Convert to fraction form
    881,110.20/1,321,665.30 = 821,623.80/x
  3. Step 3: Cross multiply
    881,110.20x = 1,321,665.30 × 821,623.80
  4. Step 4: Simplify right side
    881,110.20x = 1,085,911,666,114.14
  5. Step 5: Solve for x
    x = 1,085,911,666,114.14/881,110.20
  6. Step 6: Final answer
    x = 1,232,435.70

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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.