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Finding the Fourth Proportional to 1,544.93, 2,131.97 and 846.30

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Solution

The fourth proportional to 1,544.93, 2,131.97 and 846.30 is: 1,167.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,544.93 : 2,131.97 = 846.30 : x
  2. Step 2: Convert to fraction form
    1,544.93/2,131.97 = 846.30/x
  3. Step 3: Cross multiply
    1,544.93x = 2,131.97 × 846.30
  4. Step 4: Simplify right side
    1,544.93x = 1,804,281.98
  5. Step 5: Solve for x
    x = 1,804,281.98/1,544.93
  6. Step 6: Final answer
    x = 1,167.88

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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.