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Finding the Fourth Proportional to 403,889.42, 605,542.52 and 123,253.58

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Solution

The fourth proportional to 403,889.42, 605,542.52 and 123,253.58 is: 184,791.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,889.42 : 605,542.52 = 123,253.58 : x
  2. Step 2: Convert to fraction form
    403,889.42/605,542.52 = 123,253.58/x
  3. Step 3: Cross multiply
    403,889.42x = 605,542.52 × 123,253.58
  4. Step 4: Simplify right side
    403,889.42x = 74,635,283,432.22
  5. Step 5: Solve for x
    x = 74,635,283,432.22/403,889.42
  6. Step 6: Final answer
    x = 184,791.38

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1.5x scale

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.