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Finding the Fourth Proportional to 528,419.22, 792,716.85 and 173,337.90

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Solution

The fourth proportional to 528,419.22, 792,716.85 and 173,337.90 is: 260,035.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,419.22 : 792,716.85 = 173,337.90 : x
  2. Step 2: Convert to fraction form
    528,419.22/792,716.85 = 173,337.90/x
  3. Step 3: Cross multiply
    528,419.22x = 792,716.85 × 173,337.90
  4. Step 4: Simplify right side
    528,419.22x = 137,407,874,073.62
  5. Step 5: Solve for x
    x = 137,407,874,073.62/528,419.22
  6. Step 6: Final answer
    x = 260,035.72

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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.