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Finding the Fourth Proportional to 656,212.66, 984,401.10 and 256,801.86

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Solution

The fourth proportional to 656,212.66, 984,401.10 and 256,801.86 is: 385,234.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,212.66 : 984,401.10 = 256,801.86 : x
  2. Step 2: Convert to fraction form
    656,212.66/984,401.10 = 256,801.86/x
  3. Step 3: Cross multiply
    656,212.66x = 984,401.10 × 256,801.86
  4. Step 4: Simplify right side
    656,212.66x = 252,796,033,466.05
  5. Step 5: Solve for x
    x = 252,796,033,466.05/656,212.66
  6. Step 6: Final answer
    x = 385,234.92

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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.