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Finding the Fourth Proportional to 1,710.42, 2,360.44 and 964.56

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Solution

The fourth proportional to 1,710.42, 2,360.44 and 964.56 is: 1,331.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,710.42 : 2,360.44 = 964.56 : x
  2. Step 2: Convert to fraction form
    1,710.42/2,360.44 = 964.56/x
  3. Step 3: Cross multiply
    1,710.42x = 2,360.44 × 964.56
  4. Step 4: Simplify right side
    1,710.42x = 2,276,782.79
  5. Step 5: Solve for x
    x = 2,276,782.79/1,710.42
  6. Step 6: Final answer
    x = 1,331.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.