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Finding the Fourth Proportional to 484,107.12, 668,064.06 and 266,311.08

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Solution

The fourth proportional to 484,107.12, 668,064.06 and 266,311.08 is: 367,507.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,107.12 : 668,064.06 = 266,311.08 : x
  2. Step 2: Convert to fraction form
    484,107.12/668,064.06 = 266,311.08/x
  3. Step 3: Cross multiply
    484,107.12x = 668,064.06 × 266,311.08
  4. Step 4: Simplify right side
    484,107.12x = 177,912,861,327.79
  5. Step 5: Solve for x
    x = 177,912,861,327.79/484,107.12
  6. Step 6: Final answer
    x = 367,507.22

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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.