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Finding the Fourth Proportional to 456,238.44, 684,122.94 and 266,740.56

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Solution

The fourth proportional to 456,238.44, 684,122.94 and 266,740.56 is: 399,973.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,238.44 : 684,122.94 = 266,740.56 : x
  2. Step 2: Convert to fraction form
    456,238.44/684,122.94 = 266,740.56/x
  3. Step 3: Cross multiply
    456,238.44x = 684,122.94 × 266,740.56
  4. Step 4: Simplify right side
    456,238.44x = 182,483,336,124.45
  5. Step 5: Solve for x
    x = 182,483,336,124.45/456,238.44
  6. Step 6: Final answer
    x = 399,973.61

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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.