Home / 656,542.20-984,122.10-257,028.60

Finding the Fourth Proportional to 656,542.20, 984,122.10 and 257,028.60

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Solution

The fourth proportional to 656,542.20, 984,122.10 and 257,028.60 is: 385,272.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,542.20 : 984,122.10 = 257,028.60 : x
  2. Step 2: Convert to fraction form
    656,542.20/984,122.10 = 257,028.60/x
  3. Step 3: Cross multiply
    656,542.20x = 984,122.10 × 257,028.60
  4. Step 4: Simplify right side
    656,542.20x = 252,947,525,592.06
  5. Step 5: Solve for x
    x = 252,947,525,592.06/656,542.20
  6. Step 6: Final answer
    x = 385,272.30

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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.