Home / 833,243.70-1,149,415.91-678,361.60

Finding the Fourth Proportional to 833,243.70, 1,149,415.91 and 678,361.60

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Solution

The fourth proportional to 833,243.70, 1,149,415.91 and 678,361.60 is: 935,764.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    833,243.70 : 1,149,415.91 = 678,361.60 : x
  2. Step 2: Convert to fraction form
    833,243.70/1,149,415.91 = 678,361.60/x
  3. Step 3: Cross multiply
    833,243.70x = 1,149,415.91 × 678,361.60
  4. Step 4: Simplify right side
    833,243.70x = 779,719,612,381.25
  5. Step 5: Solve for x
    x = 779,719,612,381.25/833,243.70
  6. Step 6: Final answer
    x = 935,764.19

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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.