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Finding the Fourth Proportional to 481,798.30, 664,887 and 266,941.75

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Solution

The fourth proportional to 481,798.30, 664,887 and 266,941.75 is: 368,382.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,798.30 : 664,887 = 266,941.75 : x
  2. Step 2: Convert to fraction form
    481,798.30/664,887 = 266,941.75/x
  3. Step 3: Cross multiply
    481,798.30x = 664,887 × 266,941.75
  4. Step 4: Simplify right side
    481,798.30x = 177,486,099,332.25
  5. Step 5: Solve for x
    x = 177,486,099,332.25/481,798.30
  6. Step 6: Final answer
    x = 368,382.58

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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.