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Finding the Fourth Proportional to 1,093.76, 1,509.40 and 596.40

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Solution

The fourth proportional to 1,093.76, 1,509.40 and 596.40 is: 823.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093.76 : 1,509.40 = 596.40 : x
  2. Step 2: Convert to fraction form
    1,093.76/1,509.40 = 596.40/x
  3. Step 3: Cross multiply
    1,093.76x = 1,509.40 × 596.40
  4. Step 4: Simplify right side
    1,093.76x = 900,206.16
  5. Step 5: Solve for x
    x = 900,206.16/1,093.76
  6. Step 6: Final answer
    x = 823.04

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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.