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Finding the Fourth Proportional to 362,675.90, 500,556.53 and 209,689.79

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Solution

The fourth proportional to 362,675.90, 500,556.53 and 209,689.79 is: 289,408.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,675.90 : 500,556.53 = 209,689.79 : x
  2. Step 2: Convert to fraction form
    362,675.90/500,556.53 = 209,689.79/x
  3. Step 3: Cross multiply
    362,675.90x = 500,556.53 × 209,689.79
  4. Step 4: Simplify right side
    362,675.90x = 104,961,590,107.60
  5. Step 5: Solve for x
    x = 104,961,590,107.60/362,675.90
  6. Step 6: Final answer
    x = 289,408.78

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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.