Home / 419,154.19-578,432.85-228,169.01

Finding the Fourth Proportional to 419,154.19, 578,432.85 and 228,169.01

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Solution

The fourth proportional to 419,154.19, 578,432.85 and 228,169.01 is: 314,873.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,154.19 : 578,432.85 = 228,169.01 : x
  2. Step 2: Convert to fraction form
    419,154.19/578,432.85 = 228,169.01/x
  3. Step 3: Cross multiply
    419,154.19x = 578,432.85 × 228,169.01
  4. Step 4: Simplify right side
    419,154.19x = 131,980,451,326.43
  5. Step 5: Solve for x
    x = 131,980,451,326.43/419,154.19
  6. Step 6: Final answer
    x = 314,873.27

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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.