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Finding the Third Proportional to 329,881.50 and 545,913

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Solution

The third proportional to 329,881.50 and 545,913 is: 903,418.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,881.50 : 545,913 = 545,913 : x
  2. Step 2: Convert to fraction form
    329,881.50/545,913 = 545,913/x
  3. Step 3: Cross multiply
    329,881.50x = 545,913 × 545,913
  4. Step 4: Simplify right side
    329,881.50x = 298,021,003,569
  5. Step 5: Solve for x
    x = 298,021,003,569/329,881.50
  6. Step 6: Final answer
    x = 903,418.36

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.