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Finding the Fourth Proportional to 481,284.68, 664,164.82 and 266,420.20

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Solution

The fourth proportional to 481,284.68, 664,164.82 and 266,420.20 is: 367,655.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,284.68 : 664,164.82 = 266,420.20 : x
  2. Step 2: Convert to fraction form
    481,284.68/664,164.82 = 266,420.20/x
  3. Step 3: Cross multiply
    481,284.68x = 664,164.82 × 266,420.20
  4. Step 4: Simplify right side
    481,284.68x = 176,946,924,177.36
  5. Step 5: Solve for x
    x = 176,946,924,177.36/481,284.68
  6. Step 6: Final answer
    x = 367,655.43

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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.