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Finding the Fourth Proportional to 496,922.80, 745,384.20 and 448,711.60

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Solution

The fourth proportional to 496,922.80, 745,384.20 and 448,711.60 is: 673,067.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,922.80 : 745,384.20 = 448,711.60 : x
  2. Step 2: Convert to fraction form
    496,922.80/745,384.20 = 448,711.60/x
  3. Step 3: Cross multiply
    496,922.80x = 745,384.20 × 448,711.60
  4. Step 4: Simplify right side
    496,922.80x = 334,462,536,996.72
  5. Step 5: Solve for x
    x = 334,462,536,996.72/496,922.80
  6. Step 6: Final answer
    x = 673,067.40

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Similar ratio
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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.