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Finding the Fourth Proportional to 475,892.52, 656,731.64 and 274,688.52

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Solution

The fourth proportional to 475,892.52, 656,731.64 and 274,688.52 is: 379,070.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,892.52 : 656,731.64 = 274,688.52 : x
  2. Step 2: Convert to fraction form
    475,892.52/656,731.64 = 274,688.52/x
  3. Step 3: Cross multiply
    475,892.52x = 656,731.64 × 274,688.52
  4. Step 4: Simplify right side
    475,892.52x = 180,396,642,228.77
  5. Step 5: Solve for x
    x = 180,396,642,228.77/475,892.52
  6. Step 6: Final answer
    x = 379,070.14

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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.