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Finding the Fourth Proportional to 475,672.50, 656,486.37 and 274,468.50

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Solution

The fourth proportional to 475,672.50, 656,486.37 and 274,468.50 is: 378,800.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,672.50 : 656,486.37 = 274,468.50 : x
  2. Step 2: Convert to fraction form
    475,672.50/656,486.37 = 274,468.50/x
  3. Step 3: Cross multiply
    475,672.50x = 656,486.37 × 274,468.50
  4. Step 4: Simplify right side
    475,672.50x = 180,184,829,244.35
  5. Step 5: Solve for x
    x = 180,184,829,244.35/475,672.50
  6. Step 6: Final answer
    x = 378,800.18

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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.