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Finding the Fourth Proportional to 1,698.45, 2,343.86 and 952.48

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Solution

The fourth proportional to 1,698.45, 2,343.86 and 952.48 is: 1,314.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,698.45 : 2,343.86 = 952.48 : x
  2. Step 2: Convert to fraction form
    1,698.45/2,343.86 = 952.48/x
  3. Step 3: Cross multiply
    1,698.45x = 2,343.86 × 952.48
  4. Step 4: Simplify right side
    1,698.45x = 2,232,479.77
  5. Step 5: Solve for x
    x = 2,232,479.77/1,698.45
  6. Step 6: Final answer
    x = 1,314.42

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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.