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Finding the Fourth Proportional to 403,434.57, 605,246.63 and 226,064.01

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Solution

The fourth proportional to 403,434.57, 605,246.63 and 226,064.01 is: 339,149.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,434.57 : 605,246.63 = 226,064.01 : x
  2. Step 2: Convert to fraction form
    403,434.57/605,246.63 = 226,064.01/x
  3. Step 3: Cross multiply
    403,434.57x = 605,246.63 × 226,064.01
  4. Step 4: Simplify right side
    403,434.57x = 136,824,480,216.79
  5. Step 5: Solve for x
    x = 136,824,480,216.79/403,434.57
  6. Step 6: Final answer
    x = 339,149.12

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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.