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Finding the Third Proportional to 543.94 and 875.74

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Solution

The third proportional to 543.94 and 875.74 is: 1,409.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    543.94 : 875.74 = 875.74 : x
  2. Step 2: Convert to fraction form
    543.94/875.74 = 875.74/x
  3. Step 3: Cross multiply
    543.94x = 875.74 × 875.74
  4. Step 4: Simplify right side
    543.94x = 766,924.38
  5. Step 5: Solve for x
    x = 766,924.38/543.94
  6. Step 6: Final answer
    x = 1,409.95

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.