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Finding the Fourth Proportional to 481,309.84, 664,199.24 and 266,445.20

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Solution

The fourth proportional to 481,309.84, 664,199.24 and 266,445.20 is: 367,689.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,309.84 : 664,199.24 = 266,445.20 : x
  2. Step 2: Convert to fraction form
    481,309.84/664,199.24 = 266,445.20/x
  3. Step 3: Cross multiply
    481,309.84x = 664,199.24 × 266,445.20
  4. Step 4: Simplify right side
    481,309.84x = 176,972,699,341.65
  5. Step 5: Solve for x
    x = 176,972,699,341.65/481,309.84
  6. Step 6: Final answer
    x = 367,689.76

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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.