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Finding the Fourth Proportional to 507,528.81, 761,239.53 and 267,546.56

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Solution

The fourth proportional to 507,528.81, 761,239.53 and 267,546.56 is: 401,291.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,528.81 : 761,239.53 = 267,546.56 : x
  2. Step 2: Convert to fraction form
    507,528.81/761,239.53 = 267,546.56/x
  3. Step 3: Cross multiply
    507,528.81x = 761,239.53 × 267,546.56
  4. Step 4: Simplify right side
    507,528.81x = 203,667,013,781.32
  5. Step 5: Solve for x
    x = 203,667,013,781.32/507,528.81
  6. Step 6: Final answer
    x = 401,291.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.