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Finding the Fourth Proportional to 1,588.68, 2,380.68 and 1,461.42

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Solution

The fourth proportional to 1,588.68, 2,380.68 and 1,461.42 is: 2,189.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,588.68 : 2,380.68 = 1,461.42 : x
  2. Step 2: Convert to fraction form
    1,588.68/2,380.68 = 1,461.42/x
  3. Step 3: Cross multiply
    1,588.68x = 2,380.68 × 1,461.42
  4. Step 4: Simplify right side
    1,588.68x = 3,479,173.37
  5. Step 5: Solve for x
    x = 3,479,173.37/1,588.68
  6. Step 6: Final answer
    x = 2,189.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.