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Finding the Third Proportional to 321,853.50 and 486,925.50

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Solution

The third proportional to 321,853.50 and 486,925.50 is: 736,659.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,853.50 : 486,925.50 = 486,925.50 : x
  2. Step 2: Convert to fraction form
    321,853.50/486,925.50 = 486,925.50/x
  3. Step 3: Cross multiply
    321,853.50x = 486,925.50 × 486,925.50
  4. Step 4: Simplify right side
    321,853.50x = 237,096,442,550.25
  5. Step 5: Solve for x
    x = 237,096,442,550.25/321,853.50
  6. Step 6: Final answer
    x = 736,659.51

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.