Home / 419,607.10-579,058.77-228,623.68

Finding the Fourth Proportional to 419,607.10, 579,058.77 and 228,623.68

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Solution

The fourth proportional to 419,607.10, 579,058.77 and 228,623.68 is: 315,501.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,607.10 : 579,058.77 = 228,623.68 : x
  2. Step 2: Convert to fraction form
    419,607.10/579,058.77 = 228,623.68/x
  3. Step 3: Cross multiply
    419,607.10x = 579,058.77 × 228,623.68
  4. Step 4: Simplify right side
    419,607.10x = 132,386,546,933.67
  5. Step 5: Solve for x
    x = 132,386,546,933.67/419,607.10
  6. Step 6: Final answer
    x = 315,501.21

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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.