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Finding the Fourth Proportional to 423,906.72, 584,846.55 and 262,702.95

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Solution

The fourth proportional to 423,906.72, 584,846.55 and 262,702.95 is: 362,440.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,906.72 : 584,846.55 = 262,702.95 : x
  2. Step 2: Convert to fraction form
    423,906.72/584,846.55 = 262,702.95/x
  3. Step 3: Cross multiply
    423,906.72x = 584,846.55 × 262,702.95
  4. Step 4: Simplify right side
    423,906.72x = 153,640,913,982.32
  5. Step 5: Solve for x
    x = 153,640,913,982.32/423,906.72
  6. Step 6: Final answer
    x = 362,440.38

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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.