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Finding the Fourth Proportional to 722,311.43, 996,309.81 and 464,514.31

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Solution

The fourth proportional to 722,311.43, 996,309.81 and 464,514.31 is: 640,721.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,311.43 : 996,309.81 = 464,514.31 : x
  2. Step 2: Convert to fraction form
    722,311.43/996,309.81 = 464,514.31/x
  3. Step 3: Cross multiply
    722,311.43x = 996,309.81 × 464,514.31
  4. Step 4: Simplify right side
    722,311.43x = 462,800,163,938.38
  5. Step 5: Solve for x
    x = 462,800,163,938.38/722,311.43
  6. Step 6: Final answer
    x = 640,721.09

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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.