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Finding the Fourth Proportional to 656,221.96, 984,415.02 and 256,811.14

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Solution

The fourth proportional to 656,221.96, 984,415.02 and 256,811.14 is: 385,248.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,221.96 : 984,415.02 = 256,811.14 : x
  2. Step 2: Convert to fraction form
    656,221.96/984,415.02 = 256,811.14/x
  3. Step 3: Cross multiply
    656,221.96x = 984,415.02 × 256,811.14
  4. Step 4: Simplify right side
    656,221.96x = 252,808,743,519.32
  5. Step 5: Solve for x
    x = 252,808,743,519.32/656,221.96
  6. Step 6: Final answer
    x = 385,248.83

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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.