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Finding the Fourth Proportional to 475,716.88, 656,483.88 and 274,508.56

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Solution

The fourth proportional to 475,716.88, 656,483.88 and 274,508.56 is: 378,818.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,716.88 : 656,483.88 = 274,508.56 : x
  2. Step 2: Convert to fraction form
    475,716.88/656,483.88 = 274,508.56/x
  3. Step 3: Cross multiply
    475,716.88x = 656,483.88 × 274,508.56
  4. Step 4: Simplify right side
    475,716.88x = 180,210,444,562.01
  5. Step 5: Solve for x
    x = 180,210,444,562.01/475,716.88
  6. Step 6: Final answer
    x = 378,818.69

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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.