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Finding the Third Proportional to 555 and 714.50

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Solution

The third proportional to 555 and 714.50 is: 919.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    555 : 714.50 = 714.50 : x
  2. Step 2: Convert to fraction form
    555/714.50 = 714.50/x
  3. Step 3: Cross multiply
    555x = 714.50 × 714.50
  4. Step 4: Simplify right side
    555x = 510,510.25
  5. Step 5: Solve for x
    x = 510,510.25/555
  6. Step 6: Final answer
    x = 919.84

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These problems maintain the same ratio (1.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.