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Finding the Fourth Proportional to 644,812.11, 888,902.86 and 450,616.91

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Solution

The fourth proportional to 644,812.11, 888,902.86 and 450,616.91 is: 621,195.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,812.11 : 888,902.86 = 450,616.91 : x
  2. Step 2: Convert to fraction form
    644,812.11/888,902.86 = 450,616.91/x
  3. Step 3: Cross multiply
    644,812.11x = 888,902.86 × 450,616.91
  4. Step 4: Simplify right side
    644,812.11x = 400,554,660,063.36
  5. Step 5: Solve for x
    x = 400,554,660,063.36/644,812.11
  6. Step 6: Final answer
    x = 621,195.93

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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.