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Finding the Fourth Proportional to 625,558.15, 863,271.71 and 339,076.95

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Solution

The fourth proportional to 625,558.15, 863,271.71 and 339,076.95 is: 467,926.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,558.15 : 863,271.71 = 339,076.95 : x
  2. Step 2: Convert to fraction form
    625,558.15/863,271.71 = 339,076.95/x
  3. Step 3: Cross multiply
    625,558.15x = 863,271.71 × 339,076.95
  4. Step 4: Simplify right side
    625,558.15x = 292,715,538,448.09
  5. Step 5: Solve for x
    x = 292,715,538,448.09/625,558.15
  6. Step 6: Final answer
    x = 467,926.98

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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.