Home / 656,627.28-984,940.80-157,991.28

Finding the Fourth Proportional to 656,627.28, 984,940.80 and 157,991.28

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Solution

The fourth proportional to 656,627.28, 984,940.80 and 157,991.28 is: 236,986.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,627.28 : 984,940.80 = 157,991.28 : x
  2. Step 2: Convert to fraction form
    656,627.28/984,940.80 = 157,991.28/x
  3. Step 3: Cross multiply
    656,627.28x = 984,940.80 × 157,991.28
  4. Step 4: Simplify right side
    656,627.28x = 155,612,057,716.22
  5. Step 5: Solve for x
    x = 155,612,057,716.22/656,627.28
  6. Step 6: Final answer
    x = 236,986.89

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Similar ratio
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1.5x scale

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.