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Finding the Fourth Proportional to 444,989.46, 667,017.63 and 208,132.50

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Solution

The fourth proportional to 444,989.46, 667,017.63 and 208,132.50 is: 311,980.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,989.46 : 667,017.63 = 208,132.50 : x
  2. Step 2: Convert to fraction form
    444,989.46/667,017.63 = 208,132.50/x
  3. Step 3: Cross multiply
    444,989.46x = 667,017.63 × 208,132.50
  4. Step 4: Simplify right side
    444,989.46x = 138,828,046,875.98
  5. Step 5: Solve for x
    x = 138,828,046,875.98/444,989.46
  6. Step 6: Final answer
    x = 311,980.53

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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.