Home / 527,348.82-727,540.56-389,857.86

Finding the Fourth Proportional to 527,348.82, 727,540.56 and 389,857.86

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Solution

The fourth proportional to 527,348.82, 727,540.56 and 389,857.86 is: 537,855.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,348.82 : 727,540.56 = 389,857.86 : x
  2. Step 2: Convert to fraction form
    527,348.82/727,540.56 = 389,857.86/x
  3. Step 3: Cross multiply
    527,348.82x = 727,540.56 × 389,857.86
  4. Step 4: Simplify right side
    527,348.82x = 283,637,405,784.80
  5. Step 5: Solve for x
    x = 283,637,405,784.80/527,348.82
  6. Step 6: Final answer
    x = 537,855.39

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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.