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Finding the Fourth Proportional to 481,454.87, 664,399.58 and 266,590.31

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Solution

The fourth proportional to 481,454.87, 664,399.58 and 266,590.31 is: 367,890.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,454.87 : 664,399.58 = 266,590.31 : x
  2. Step 2: Convert to fraction form
    481,454.87/664,399.58 = 266,590.31/x
  3. Step 3: Cross multiply
    481,454.87x = 664,399.58 × 266,590.31
  4. Step 4: Simplify right side
    481,454.87x = 177,122,485,341.12
  5. Step 5: Solve for x
    x = 177,122,485,341.12/481,454.87
  6. Step 6: Final answer
    x = 367,890.11

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1.5x scale

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.