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Finding the Fourth Proportional to 679,344.95, 937,485.54 and 373,414.77

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Solution

The fourth proportional to 679,344.95, 937,485.54 and 373,414.77 is: 515,306.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,344.95 : 937,485.54 = 373,414.77 : x
  2. Step 2: Convert to fraction form
    679,344.95/937,485.54 = 373,414.77/x
  3. Step 3: Cross multiply
    679,344.95x = 937,485.54 × 373,414.77
  4. Step 4: Simplify right side
    679,344.95x = 350,070,947,297.43
  5. Step 5: Solve for x
    x = 350,070,947,297.43/679,344.95
  6. Step 6: Final answer
    x = 515,306.61

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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.