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Finding the Fourth Proportional to 1,798.56, 2,482.47 and 1,400.22

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Solution

The fourth proportional to 1,798.56, 2,482.47 and 1,400.22 is: 1,932.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,798.56 : 2,482.47 = 1,400.22 : x
  2. Step 2: Convert to fraction form
    1,798.56/2,482.47 = 1,400.22/x
  3. Step 3: Cross multiply
    1,798.56x = 2,482.47 × 1,400.22
  4. Step 4: Simplify right side
    1,798.56x = 3,476,004.14
  5. Step 5: Solve for x
    x = 3,476,004.14/1,798.56
  6. Step 6: Final answer
    x = 1,932.66

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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.