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Finding the Fourth Proportional to 447,597.86, 617,697.95 and 243,661.98

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Solution

The fourth proportional to 447,597.86, 617,697.95 and 243,661.98 is: 336,260.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,597.86 : 617,697.95 = 243,661.98 : x
  2. Step 2: Convert to fraction form
    447,597.86/617,697.95 = 243,661.98/x
  3. Step 3: Cross multiply
    447,597.86x = 617,697.95 × 243,661.98
  4. Step 4: Simplify right side
    447,597.86x = 150,509,505,538.94
  5. Step 5: Solve for x
    x = 150,509,505,538.94/447,597.86
  6. Step 6: Final answer
    x = 336,260.56

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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.