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Finding the Fourth Proportional to 1,155.76, 1,733.77 and 506.41

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Solution

The fourth proportional to 1,155.76, 1,733.77 and 506.41 is: 759.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155.76 : 1,733.77 = 506.41 : x
  2. Step 2: Convert to fraction form
    1,155.76/1,733.77 = 506.41/x
  3. Step 3: Cross multiply
    1,155.76x = 1,733.77 × 506.41
  4. Step 4: Simplify right side
    1,155.76x = 877,998.47
  5. Step 5: Solve for x
    x = 877,998.47/1,155.76
  6. Step 6: Final answer
    x = 759.67

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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.