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Finding the Third Proportional to 251,834.50 and 553,281.50

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Solution

The third proportional to 251,834.50 and 553,281.50 is: 1,215,561.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,834.50 : 553,281.50 = 553,281.50 : x
  2. Step 2: Convert to fraction form
    251,834.50/553,281.50 = 553,281.50/x
  3. Step 3: Cross multiply
    251,834.50x = 553,281.50 × 553,281.50
  4. Step 4: Simplify right side
    251,834.50x = 306,120,418,242.25
  5. Step 5: Solve for x
    x = 306,120,418,242.25/251,834.50
  6. Step 6: Final answer
    x = 1,215,561.88

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.