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Finding the Fourth Proportional to 656,175.20, 984,262.80 and 443,598.80

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Solution

The fourth proportional to 656,175.20, 984,262.80 and 443,598.80 is: 665,398.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,175.20 : 984,262.80 = 443,598.80 : x
  2. Step 2: Convert to fraction form
    656,175.20/984,262.80 = 443,598.80/x
  3. Step 3: Cross multiply
    656,175.20x = 984,262.80 × 443,598.80
  4. Step 4: Simplify right side
    656,175.20x = 436,617,796,964.64
  5. Step 5: Solve for x
    x = 436,617,796,964.64/656,175.20
  6. Step 6: Final answer
    x = 665,398.20

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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.