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Finding the Fourth Proportional to 1,476.23, 2,037.12 and 813.07

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Solution

The fourth proportional to 1,476.23, 2,037.12 and 813.07 is: 1,121.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,476.23 : 2,037.12 = 813.07 : x
  2. Step 2: Convert to fraction form
    1,476.23/2,037.12 = 813.07/x
  3. Step 3: Cross multiply
    1,476.23x = 2,037.12 × 813.07
  4. Step 4: Simplify right side
    1,476.23x = 1,656,323.22
  5. Step 5: Solve for x
    x = 1,656,323.22/1,476.23
  6. Step 6: Final answer
    x = 1,121.99

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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.