Home / 389,877.83-538,006.09-226,519.86

Finding the Fourth Proportional to 389,877.83, 538,006.09 and 226,519.86

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Solution

The fourth proportional to 389,877.83, 538,006.09 and 226,519.86 is: 312,582.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,877.83 : 538,006.09 = 226,519.86 : x
  2. Step 2: Convert to fraction form
    389,877.83/538,006.09 = 226,519.86/x
  3. Step 3: Cross multiply
    389,877.83x = 538,006.09 × 226,519.86
  4. Step 4: Simplify right side
    389,877.83x = 121,869,063,053.35
  5. Step 5: Solve for x
    x = 121,869,063,053.35/389,877.83
  6. Step 6: Final answer
    x = 312,582.70

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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.