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Finding the Fourth Proportional to 2,458.59, 3,392.87 and 1,396.32

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Solution

The fourth proportional to 2,458.59, 3,392.87 and 1,396.32 is: 1,926.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,458.59 : 3,392.87 = 1,396.32 : x
  2. Step 2: Convert to fraction form
    2,458.59/3,392.87 = 1,396.32/x
  3. Step 3: Cross multiply
    2,458.59x = 3,392.87 × 1,396.32
  4. Step 4: Simplify right side
    2,458.59x = 4,737,532.24
  5. Step 5: Solve for x
    x = 4,737,532.24/2,458.59
  6. Step 6: Final answer
    x = 1,926.93

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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.