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Finding the Fourth Proportional to 423,641.36, 584,408.92 and 270,518.56

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Solution

The fourth proportional to 423,641.36, 584,408.92 and 270,518.56 is: 373,177.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,641.36 : 584,408.92 = 270,518.56 : x
  2. Step 2: Convert to fraction form
    423,641.36/584,408.92 = 270,518.56/x
  3. Step 3: Cross multiply
    423,641.36x = 584,408.92 × 270,518.56
  4. Step 4: Simplify right side
    423,641.36x = 158,093,459,489.56
  5. Step 5: Solve for x
    x = 158,093,459,489.56/423,641.36
  6. Step 6: Final answer
    x = 373,177.58

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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.