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Finding the Fourth Proportional to 2,353.91, 3,248.04 and 1,409.48

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Solution

The fourth proportional to 2,353.91, 3,248.04 and 1,409.48 is: 1,944.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,353.91 : 3,248.04 = 1,409.48 : x
  2. Step 2: Convert to fraction form
    2,353.91/3,248.04 = 1,409.48/x
  3. Step 3: Cross multiply
    2,353.91x = 3,248.04 × 1,409.48
  4. Step 4: Simplify right side
    2,353.91x = 4,578,031.18
  5. Step 5: Solve for x
    x = 4,578,031.18/2,353.91
  6. Step 6: Final answer
    x = 1,944.87

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1.5x scale

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.