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Finding the Fourth Proportional to 284,767.20, 426,859.20 and 166,377.60

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Solution

The fourth proportional to 284,767.20, 426,859.20 and 166,377.60 is: 249,396.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,767.20 : 426,859.20 = 166,377.60 : x
  2. Step 2: Convert to fraction form
    284,767.20/426,859.20 = 166,377.60/x
  3. Step 3: Cross multiply
    284,767.20x = 426,859.20 × 166,377.60
  4. Step 4: Simplify right side
    284,767.20x = 71,019,809,233.92
  5. Step 5: Solve for x
    x = 71,019,809,233.92/284,767.20
  6. Step 6: Final answer
    x = 249,396.03

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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.