Home / 676,277.78-933,036.77-389,791.71

Finding the Fourth Proportional to 676,277.78, 933,036.77 and 389,791.71

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Solution

The fourth proportional to 676,277.78, 933,036.77 and 389,791.71 is: 537,781.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,277.78 : 933,036.77 = 389,791.71 : x
  2. Step 2: Convert to fraction form
    676,277.78/933,036.77 = 389,791.71/x
  3. Step 3: Cross multiply
    676,277.78x = 933,036.77 × 389,791.71
  4. Step 4: Simplify right side
    676,277.78x = 363,689,999,045.66
  5. Step 5: Solve for x
    x = 363,689,999,045.66/676,277.78
  6. Step 6: Final answer
    x = 537,781.98

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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.