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Finding the Fourth Proportional to 683,763.66, 943,588.71 and 377,860.68

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Solution

The fourth proportional to 683,763.66, 943,588.71 and 377,860.68 is: 521,444.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,763.66 : 943,588.71 = 377,860.68 : x
  2. Step 2: Convert to fraction form
    683,763.66/943,588.71 = 377,860.68/x
  3. Step 3: Cross multiply
    683,763.66x = 943,588.71 × 377,860.68
  4. Step 4: Simplify right side
    683,763.66x = 356,545,071,600.92
  5. Step 5: Solve for x
    x = 356,545,071,600.92/683,763.66
  6. Step 6: Final answer
    x = 521,444.90

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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.