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Finding the Third Proportional to 291,806 and 437,707

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Solution

The third proportional to 291,806 and 437,707 is: 656,557.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,806 : 437,707 = 437,707 : x
  2. Step 2: Convert to fraction form
    291,806/437,707 = 437,707/x
  3. Step 3: Cross multiply
    291,806x = 437,707 × 437,707
  4. Step 4: Simplify right side
    291,806x = 191,587,417,849
  5. Step 5: Solve for x
    x = 191,587,417,849/291,806
  6. Step 6: Final answer
    x = 656,557.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.