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Finding the Fourth Proportional to 625,268.41, 862,886.45 and 383,684.49

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Solution

The fourth proportional to 625,268.41, 862,886.45 and 383,684.49 is: 529,494.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,268.41 : 862,886.45 = 383,684.49 : x
  2. Step 2: Convert to fraction form
    625,268.41/862,886.45 = 383,684.49/x
  3. Step 3: Cross multiply
    625,268.41x = 862,886.45 × 383,684.49
  4. Step 4: Simplify right side
    625,268.41x = 331,076,148,455.37
  5. Step 5: Solve for x
    x = 331,076,148,455.37/625,268.41
  6. Step 6: Final answer
    x = 529,494.45

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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.