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Finding the Third Proportional to 236,306 and 354,459

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Solution

The third proportional to 236,306 and 354,459 is: 531,688.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,306 : 354,459 = 354,459 : x
  2. Step 2: Convert to fraction form
    236,306/354,459 = 354,459/x
  3. Step 3: Cross multiply
    236,306x = 354,459 × 354,459
  4. Step 4: Simplify right side
    236,306x = 125,641,182,681
  5. Step 5: Solve for x
    x = 125,641,182,681/236,306
  6. Step 6: Final answer
    x = 531,688.50

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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.