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Finding the Fourth Proportional to 477,978.83, 717,118.94 and 225,249.11

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Solution

The fourth proportional to 477,978.83, 717,118.94 and 225,249.11 is: 337,944.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,978.83 : 717,118.94 = 225,249.11 : x
  2. Step 2: Convert to fraction form
    477,978.83/717,118.94 = 225,249.11/x
  3. Step 3: Cross multiply
    477,978.83x = 717,118.94 × 225,249.11
  4. Step 4: Simplify right side
    477,978.83x = 161,530,402,665.87
  5. Step 5: Solve for x
    x = 161,530,402,665.87/477,978.83
  6. Step 6: Final answer
    x = 337,944.68

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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.