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Finding the Fourth Proportional to 683,543.76, 943,287.42 and 377,620.14

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Solution

The fourth proportional to 683,543.76, 943,287.42 and 377,620.14 is: 521,114.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,543.76 : 943,287.42 = 377,620.14 : x
  2. Step 2: Convert to fraction form
    683,543.76/943,287.42 = 377,620.14/x
  3. Step 3: Cross multiply
    683,543.76x = 943,287.42 × 377,620.14
  4. Step 4: Simplify right side
    683,543.76x = 356,204,327,600.64
  5. Step 5: Solve for x
    x = 356,204,327,600.64/683,543.76
  6. Step 6: Final answer
    x = 521,114.15

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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.