Home / 811,999.98-1,120,562.19-449,448.84

Finding the Fourth Proportional to 811,999.98, 1,120,562.19 and 449,448.84

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Solution

The fourth proportional to 811,999.98, 1,120,562.19 and 449,448.84 is: 620,240.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,999.98 : 1,120,562.19 = 449,448.84 : x
  2. Step 2: Convert to fraction form
    811,999.98/1,120,562.19 = 449,448.84/x
  3. Step 3: Cross multiply
    811,999.98x = 1,120,562.19 × 449,448.84
  4. Step 4: Simplify right side
    811,999.98x = 503,635,376,443.36
  5. Step 5: Solve for x
    x = 503,635,376,443.36/811,999.98
  6. Step 6: Final answer
    x = 620,240.63

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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.