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Finding the Third Proportional to 426,019.50 and 622,551.75

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Solution

The third proportional to 426,019.50 and 622,551.75 is: 909,748.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,019.50 : 622,551.75 = 622,551.75 : x
  2. Step 2: Convert to fraction form
    426,019.50/622,551.75 = 622,551.75/x
  3. Step 3: Cross multiply
    426,019.50x = 622,551.75 × 622,551.75
  4. Step 4: Simplify right side
    426,019.50x = 387,570,681,428.06
  5. Step 5: Solve for x
    x = 387,570,681,428.06/426,019.50
  6. Step 6: Final answer
    x = 909,748.69

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.