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Finding the Fourth Proportional to 444,740.26, 666,411.80 and 343,785.68

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Solution

The fourth proportional to 444,740.26, 666,411.80 and 343,785.68 is: 515,138.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,740.26 : 666,411.80 = 343,785.68 : x
  2. Step 2: Convert to fraction form
    444,740.26/666,411.80 = 343,785.68/x
  3. Step 3: Cross multiply
    444,740.26x = 666,411.80 × 343,785.68
  4. Step 4: Simplify right side
    444,740.26x = 229,102,833,823.02
  5. Step 5: Solve for x
    x = 229,102,833,823.02/444,740.26
  6. Step 6: Final answer
    x = 515,138.51

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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.