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Finding the Fourth Proportional to 654,553.71, 902,771.66 and 447,944.45

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Solution

The fourth proportional to 654,553.71, 902,771.66 and 447,944.45 is: 617,812.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,553.71 : 902,771.66 = 447,944.45 : x
  2. Step 2: Convert to fraction form
    654,553.71/902,771.66 = 447,944.45/x
  3. Step 3: Cross multiply
    654,553.71x = 902,771.66 × 447,944.45
  4. Step 4: Simplify right side
    654,553.71x = 404,391,551,320.29
  5. Step 5: Solve for x
    x = 404,391,551,320.29/654,553.71
  6. Step 6: Final answer
    x = 617,812.63

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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.