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Finding the Fourth Proportional to 481,412.69, 664,359.95 and 263,630.63

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Solution

The fourth proportional to 481,412.69, 664,359.95 and 263,630.63 is: 363,815.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,412.69 : 664,359.95 = 263,630.63 : x
  2. Step 2: Convert to fraction form
    481,412.69/664,359.95 = 263,630.63/x
  3. Step 3: Cross multiply
    481,412.69x = 664,359.95 × 263,630.63
  4. Step 4: Simplify right side
    481,412.69x = 175,145,629,502.55
  5. Step 5: Solve for x
    x = 175,145,629,502.55/481,412.69
  6. Step 6: Final answer
    x = 363,815.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.