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Finding the Third Proportional to 398,724 and 594,630

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Solution

The third proportional to 398,724 and 594,630 is: 886,790.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,724 : 594,630 = 594,630 : x
  2. Step 2: Convert to fraction form
    398,724/594,630 = 594,630/x
  3. Step 3: Cross multiply
    398,724x = 594,630 × 594,630
  4. Step 4: Simplify right side
    398,724x = 353,584,836,900
  5. Step 5: Solve for x
    x = 353,584,836,900/398,724
  6. Step 6: Final answer
    x = 886,790.96

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.