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Finding the Fourth Proportional to 389,174.44, 537,061.44 and 219,408.16

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Solution

The fourth proportional to 389,174.44, 537,061.44 and 219,408.16 is: 302,783.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,174.44 : 537,061.44 = 219,408.16 : x
  2. Step 2: Convert to fraction form
    389,174.44/537,061.44 = 219,408.16/x
  3. Step 3: Cross multiply
    389,174.44x = 537,061.44 × 219,408.16
  4. Step 4: Simplify right side
    389,174.44x = 117,835,662,357.35
  5. Step 5: Solve for x
    x = 117,835,662,357.35/389,174.44
  6. Step 6: Final answer
    x = 302,783.66

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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.