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Finding the Fourth Proportional to 1,260.34, 1,739.20 and 944.98

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Solution

The fourth proportional to 1,260.34, 1,739.20 and 944.98 is: 1,304.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260.34 : 1,739.20 = 944.98 : x
  2. Step 2: Convert to fraction form
    1,260.34/1,739.20 = 944.98/x
  3. Step 3: Cross multiply
    1,260.34x = 1,739.20 × 944.98
  4. Step 4: Simplify right side
    1,260.34x = 1,643,509.22
  5. Step 5: Solve for x
    x = 1,643,509.22/1,260.34
  6. Step 6: Final answer
    x = 1,304.02

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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.