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Finding the Third Proportional to 262,075.50 and 419,721.75

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Solution

The third proportional to 262,075.50 and 419,721.75 is: 672,196.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,075.50 : 419,721.75 = 419,721.75 : x
  2. Step 2: Convert to fraction form
    262,075.50/419,721.75 = 419,721.75/x
  3. Step 3: Cross multiply
    262,075.50x = 419,721.75 × 419,721.75
  4. Step 4: Simplify right side
    262,075.50x = 176,166,347,423.06
  5. Step 5: Solve for x
    x = 176,166,347,423.06/262,075.50
  6. Step 6: Final answer
    x = 672,196.93

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.