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Finding the Fourth Proportional to 519,593.84, 716,976.27 and 290,163.87

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Solution

The fourth proportional to 519,593.84, 716,976.27 and 290,163.87 is: 400,390.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,593.84 : 716,976.27 = 290,163.87 : x
  2. Step 2: Convert to fraction form
    519,593.84/716,976.27 = 290,163.87/x
  3. Step 3: Cross multiply
    519,593.84x = 716,976.27 × 290,163.87
  4. Step 4: Simplify right side
    519,593.84x = 208,040,609,201.37
  5. Step 5: Solve for x
    x = 208,040,609,201.37/519,593.84
  6. Step 6: Final answer
    x = 400,390.83

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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.