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Finding the Fourth Proportional to 455,892.75, 683,227.84 and 354,812.85

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Solution

The fourth proportional to 455,892.75, 683,227.84 and 354,812.85 is: 531,743.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,892.75 : 683,227.84 = 354,812.85 : x
  2. Step 2: Convert to fraction form
    455,892.75/683,227.84 = 354,812.85/x
  3. Step 3: Cross multiply
    455,892.75x = 683,227.84 × 354,812.85
  4. Step 4: Simplify right side
    455,892.75x = 242,418,017,109.74
  5. Step 5: Solve for x
    x = 242,418,017,109.74/455,892.75
  6. Step 6: Final answer
    x = 531,743.52

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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.