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Finding the Fourth Proportional to 683,671.14, 943,485.21 and 377,767.32

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Solution

The fourth proportional to 683,671.14, 943,485.21 and 377,767.32 is: 521,329.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,671.14 : 943,485.21 = 377,767.32 : x
  2. Step 2: Convert to fraction form
    683,671.14/943,485.21 = 377,767.32/x
  3. Step 3: Cross multiply
    683,671.14x = 943,485.21 × 377,767.32
  4. Step 4: Simplify right side
    683,671.14x = 356,417,879,241.34
  5. Step 5: Solve for x
    x = 356,417,879,241.34/683,671.14
  6. Step 6: Final answer
    x = 521,329.42

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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.