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Finding the Fourth Proportional to 1,697.84, 2,546.43 and 527.63

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Solution

The fourth proportional to 1,697.84, 2,546.43 and 527.63 is: 791.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,697.84 : 2,546.43 = 527.63 : x
  2. Step 2: Convert to fraction form
    1,697.84/2,546.43 = 527.63/x
  3. Step 3: Cross multiply
    1,697.84x = 2,546.43 × 527.63
  4. Step 4: Simplify right side
    1,697.84x = 1,343,572.86
  5. Step 5: Solve for x
    x = 1,343,572.86/1,697.84
  6. Step 6: Final answer
    x = 791.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.