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Finding the Fourth Proportional to 656,591.20, 984,195.60 and 257,077.60

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Solution

The fourth proportional to 656,591.20, 984,195.60 and 257,077.60 is: 385,345.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,591.20 : 984,195.60 = 257,077.60 : x
  2. Step 2: Convert to fraction form
    656,591.20/984,195.60 = 257,077.60/x
  3. Step 3: Cross multiply
    656,591.20x = 984,195.60 × 257,077.60
  4. Step 4: Simplify right side
    656,591.20x = 253,014,642,778.56
  5. Step 5: Solve for x
    x = 253,014,642,778.56/656,591.20
  6. Step 6: Final answer
    x = 385,345.77

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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.