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Finding the Fourth Proportional to 1,695.04, 2,338.80 and 996.16

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Solution

The fourth proportional to 1,695.04, 2,338.80 and 996.16 is: 1,374.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,695.04 : 2,338.80 = 996.16 : x
  2. Step 2: Convert to fraction form
    1,695.04/2,338.80 = 996.16/x
  3. Step 3: Cross multiply
    1,695.04x = 2,338.80 × 996.16
  4. Step 4: Simplify right side
    1,695.04x = 2,329,819.01
  5. Step 5: Solve for x
    x = 2,329,819.01/1,695.04
  6. Step 6: Final answer
    x = 1,374.49

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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.