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Finding the Fourth Proportional to 1,458.79, 2,188.09 and 593.08

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Solution

The fourth proportional to 1,458.79, 2,188.09 and 593.08 is: 889.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458.79 : 2,188.09 = 593.08 : x
  2. Step 2: Convert to fraction form
    1,458.79/2,188.09 = 593.08/x
  3. Step 3: Cross multiply
    1,458.79x = 2,188.09 × 593.08
  4. Step 4: Simplify right side
    1,458.79x = 1,297,712.42
  5. Step 5: Solve for x
    x = 1,297,712.42/1,458.79
  6. Step 6: Final answer
    x = 889.58

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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.