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Finding the Fourth Proportional to 1,113.04, 1,670.57 and 593.48

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Solution

The fourth proportional to 1,113.04, 1,670.57 and 593.48 is: 890.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113.04 : 1,670.57 = 593.48 : x
  2. Step 2: Convert to fraction form
    1,113.04/1,670.57 = 593.48/x
  3. Step 3: Cross multiply
    1,113.04x = 1,670.57 × 593.48
  4. Step 4: Simplify right side
    1,113.04x = 991,449.88
  5. Step 5: Solve for x
    x = 991,449.88/1,113.04
  6. Step 6: Final answer
    x = 890.76

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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.