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Finding the Fourth Proportional to 426,954.15, 639,797.91 and 173,925.54

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Solution

The fourth proportional to 426,954.15, 639,797.91 and 173,925.54 is: 260,630.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,954.15 : 639,797.91 = 173,925.54 : x
  2. Step 2: Convert to fraction form
    426,954.15/639,797.91 = 173,925.54/x
  3. Step 3: Cross multiply
    426,954.15x = 639,797.91 × 173,925.54
  4. Step 4: Simplify right side
    426,954.15x = 111,277,196,335.40
  5. Step 5: Solve for x
    x = 111,277,196,335.40/426,954.15
  6. Step 6: Final answer
    x = 260,630.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.