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Finding the Fourth Proportional to 389,858.56, 584,603.48 and 179,434.24

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Solution

The fourth proportional to 389,858.56, 584,603.48 and 179,434.24 is: 269,066.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,858.56 : 584,603.48 = 179,434.24 : x
  2. Step 2: Convert to fraction form
    389,858.56/584,603.48 = 179,434.24/x
  3. Step 3: Cross multiply
    389,858.56x = 584,603.48 × 179,434.24
  4. Step 4: Simplify right side
    389,858.56x = 104,897,881,135.16
  5. Step 5: Solve for x
    x = 104,897,881,135.16/389,858.56
  6. Step 6: Final answer
    x = 269,066.51

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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.