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Finding the Fourth Proportional to 612,791.19, 846,258.17 and 504,963.86

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Solution

The fourth proportional to 612,791.19, 846,258.17 and 504,963.86 is: 697,349.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,791.19 : 846,258.17 = 504,963.86 : x
  2. Step 2: Convert to fraction form
    612,791.19/846,258.17 = 504,963.86/x
  3. Step 3: Cross multiply
    612,791.19x = 846,258.17 × 504,963.86
  4. Step 4: Simplify right side
    612,791.19x = 427,329,785,323.63
  5. Step 5: Solve for x
    x = 427,329,785,323.63/612,791.19
  6. Step 6: Final answer
    x = 697,349.75

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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.