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Finding the Fourth Proportional to 528,806.22, 792,911.25 and 173,724.90

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Solution

The fourth proportional to 528,806.22, 792,911.25 and 173,724.90 is: 260,489.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,806.22 : 792,911.25 = 173,724.90 : x
  2. Step 2: Convert to fraction form
    528,806.22/792,911.25 = 173,724.90/x
  3. Step 3: Cross multiply
    528,806.22x = 792,911.25 × 173,724.90
  4. Step 4: Simplify right side
    528,806.22x = 137,748,427,615.13
  5. Step 5: Solve for x
    x = 137,748,427,615.13/528,806.22
  6. Step 6: Final answer
    x = 260,489.42

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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.