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Finding the Fourth Proportional to 484,509,796.80, 726,764,695.20 and 447,096,350.40

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Solution

The fourth proportional to 484,509,796.80, 726,764,695.20 and 447,096,350.40 is: 670,644,525.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,509,796.80 : 726,764,695.20 = 447,096,350.40 : x
  2. Step 2: Convert to fraction form
    484,509,796.80/726,764,695.20 = 447,096,350.40/x
  3. Step 3: Cross multiply
    484,509,796.80x = 726,764,695.20 × 447,096,350.40
  4. Step 4: Simplify right side
    484,509,796.80x = 324,933,842,823,488,384
  5. Step 5: Solve for x
    x = 324,933,842,823,488,384/484,509,796.80
  6. Step 6: Final answer
    x = 670,644,525.60

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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.