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Finding the Fourth Proportional to 1,091.08, 1,505.67 and 593.71

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Solution

The fourth proportional to 1,091.08, 1,505.67 and 593.71 is: 819.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091.08 : 1,505.67 = 593.71 : x
  2. Step 2: Convert to fraction form
    1,091.08/1,505.67 = 593.71/x
  3. Step 3: Cross multiply
    1,091.08x = 1,505.67 × 593.71
  4. Step 4: Simplify right side
    1,091.08x = 893,931.34
  5. Step 5: Solve for x
    x = 893,931.34/1,091.08
  6. Step 6: Final answer
    x = 819.31

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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.