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Finding the Third Proportional to 384.75 and 841.50

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Solution

The third proportional to 384.75 and 841.50 is: 1,840.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    384.75 : 841.50 = 841.50 : x
  2. Step 2: Convert to fraction form
    384.75/841.50 = 841.50/x
  3. Step 3: Cross multiply
    384.75x = 841.50 × 841.50
  4. Step 4: Simplify right side
    384.75x = 708,122.25
  5. Step 5: Solve for x
    x = 708,122.25/384.75
  6. Step 6: Final answer
    x = 1,840.47

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.