Home / 678,028.62-935,617.56-402,338.94

Finding the Fourth Proportional to 678,028.62, 935,617.56 and 402,338.94

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Solution

The fourth proportional to 678,028.62, 935,617.56 and 402,338.94 is: 555,190.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,028.62 : 935,617.56 = 402,338.94 : x
  2. Step 2: Convert to fraction form
    678,028.62/935,617.56 = 402,338.94/x
  3. Step 3: Cross multiply
    678,028.62x = 935,617.56 × 402,338.94
  4. Step 4: Simplify right side
    678,028.62x = 376,435,377,335.79
  5. Step 5: Solve for x
    x = 376,435,377,335.79/678,028.62
  6. Step 6: Final answer
    x = 555,190.98

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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.