Home / 465,960.12-643,241.60-351,285.37

Finding the Fourth Proportional to 465,960.12, 643,241.60 and 351,285.37

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Solution

The fourth proportional to 465,960.12, 643,241.60 and 351,285.37 is: 484,937.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,960.12 : 643,241.60 = 351,285.37 : x
  2. Step 2: Convert to fraction form
    465,960.12/643,241.60 = 351,285.37/x
  3. Step 3: Cross multiply
    465,960.12x = 643,241.60 × 351,285.37
  4. Step 4: Simplify right side
    465,960.12x = 225,961,363,455.39
  5. Step 5: Solve for x
    x = 225,961,363,455.39/465,960.12
  6. Step 6: Final answer
    x = 484,937.13

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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.