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Finding the Fourth Proportional to 481,444.66, 664,385.47 and 266,580.10

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Solution

The fourth proportional to 481,444.66, 664,385.47 and 266,580.10 is: 367,876.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,444.66 : 664,385.47 = 266,580.10 : x
  2. Step 2: Convert to fraction form
    481,444.66/664,385.47 = 266,580.10/x
  3. Step 3: Cross multiply
    481,444.66x = 664,385.47 × 266,580.10
  4. Step 4: Simplify right side
    481,444.66x = 177,111,945,031.15
  5. Step 5: Solve for x
    x = 177,111,945,031.15/481,444.66
  6. Step 6: Final answer
    x = 367,876.02

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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.