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Finding the Fourth Proportional to 683,651.13, 943,457.61 and 377,747.20

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Solution

The fourth proportional to 683,651.13, 943,457.61 and 377,747.20 is: 521,301.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,651.13 : 943,457.61 = 377,747.20 : x
  2. Step 2: Convert to fraction form
    683,651.13/943,457.61 = 377,747.20/x
  3. Step 3: Cross multiply
    683,651.13x = 943,457.61 × 377,747.20
  4. Step 4: Simplify right side
    683,651.13x = 356,388,470,496.19
  5. Step 5: Solve for x
    x = 356,388,470,496.19/683,651.13
  6. Step 6: Final answer
    x = 521,301.66

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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.