Home / 716,956.33-989,399.45-394,664.75

Finding the Fourth Proportional to 716,956.33, 989,399.45 and 394,664.75

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Solution

The fourth proportional to 716,956.33, 989,399.45 and 394,664.75 is: 544,637.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,956.33 : 989,399.45 = 394,664.75 : x
  2. Step 2: Convert to fraction form
    716,956.33/989,399.45 = 394,664.75/x
  3. Step 3: Cross multiply
    716,956.33x = 989,399.45 × 394,664.75
  4. Step 4: Simplify right side
    716,956.33x = 390,481,084,611.06
  5. Step 5: Solve for x
    x = 390,481,084,611.06/716,956.33
  6. Step 6: Final answer
    x = 544,637.20

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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.