Home / 716,851.39-989,247.10-394,554.57

Finding the Fourth Proportional to 716,851.39, 989,247.10 and 394,554.57

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Solution

The fourth proportional to 716,851.39, 989,247.10 and 394,554.57 is: 544,481.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,851.39 : 989,247.10 = 394,554.57 : x
  2. Step 2: Convert to fraction form
    716,851.39/989,247.10 = 394,554.57/x
  3. Step 3: Cross multiply
    716,851.39x = 989,247.10 × 394,554.57
  4. Step 4: Simplify right side
    716,851.39x = 390,311,964,164.25
  5. Step 5: Solve for x
    x = 390,311,964,164.25/716,851.39
  6. Step 6: Final answer
    x = 544,481.00

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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.