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Finding the Third Proportional to 391,837.50 and 525,244.50

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Solution

The third proportional to 391,837.50 and 525,244.50 is: 704,071.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,837.50 : 525,244.50 = 525,244.50 : x
  2. Step 2: Convert to fraction form
    391,837.50/525,244.50 = 525,244.50/x
  3. Step 3: Cross multiply
    391,837.50x = 525,244.50 × 525,244.50
  4. Step 4: Simplify right side
    391,837.50x = 275,881,784,780.25
  5. Step 5: Solve for x
    x = 275,881,784,780.25/391,837.50
  6. Step 6: Final answer
    x = 704,071.93

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.