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Finding the Fourth Proportional to 483,816.40, 667,683.74 and 266,041.65

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Solution

The fourth proportional to 483,816.40, 667,683.74 and 266,041.65 is: 367,146.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,816.40 : 667,683.74 = 266,041.65 : x
  2. Step 2: Convert to fraction form
    483,816.40/667,683.74 = 266,041.65/x
  3. Step 3: Cross multiply
    483,816.40x = 667,683.74 × 266,041.65
  4. Step 4: Simplify right side
    483,816.40x = 177,631,683,867.77
  5. Step 5: Solve for x
    x = 177,631,683,867.77/483,816.40
  6. Step 6: Final answer
    x = 367,146.88

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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.