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Finding the Fourth Proportional to 1,295.64, 1,932.30 and 1,171.08

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Solution

The fourth proportional to 1,295.64, 1,932.30 and 1,171.08 is: 1,746.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295.64 : 1,932.30 = 1,171.08 : x
  2. Step 2: Convert to fraction form
    1,295.64/1,932.30 = 1,171.08/x
  3. Step 3: Cross multiply
    1,295.64x = 1,932.30 × 1,171.08
  4. Step 4: Simplify right side
    1,295.64x = 2,262,877.88
  5. Step 5: Solve for x
    x = 2,262,877.88/1,295.64
  6. Step 6: Final answer
    x = 1,746.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.