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Finding the Third Proportional to 388.75 and 594.50

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Solution

The third proportional to 388.75 and 594.50 is: 909.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    388.75 : 594.50 = 594.50 : x
  2. Step 2: Convert to fraction form
    388.75/594.50 = 594.50/x
  3. Step 3: Cross multiply
    388.75x = 594.50 × 594.50
  4. Step 4: Simplify right side
    388.75x = 353,430.25
  5. Step 5: Solve for x
    x = 353,430.25/388.75
  6. Step 6: Final answer
    x = 909.15

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.