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Finding the Fourth Proportional to 1,707.17, 2,560.32 and 474.26

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Solution

The fourth proportional to 1,707.17, 2,560.32 and 474.26 is: 711.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,707.17 : 2,560.32 = 474.26 : x
  2. Step 2: Convert to fraction form
    1,707.17/2,560.32 = 474.26/x
  3. Step 3: Cross multiply
    1,707.17x = 2,560.32 × 474.26
  4. Step 4: Simplify right side
    1,707.17x = 1,214,244.56
  5. Step 5: Solve for x
    x = 1,214,244.56/1,707.17
  6. Step 6: Final answer
    x = 711.26

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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.