Home / 419,156.19-578,435.61-228,171.01

Finding the Fourth Proportional to 419,156.19, 578,435.61 and 228,171.01

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Solution

The fourth proportional to 419,156.19, 578,435.61 and 228,171.01 is: 314,876.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,156.19 : 578,435.61 = 228,171.01 : x
  2. Step 2: Convert to fraction form
    419,156.19/578,435.61 = 228,171.01/x
  3. Step 3: Cross multiply
    419,156.19x = 578,435.61 × 228,171.01
  4. Step 4: Simplify right side
    419,156.19x = 131,982,237,353.67
  5. Step 5: Solve for x
    x = 131,982,237,353.67/419,156.19
  6. Step 6: Final answer
    x = 314,876.03

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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.