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Finding the Fourth Proportional to 528,809.22, 792,915.75 and 173,727.90

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Solution

The fourth proportional to 528,809.22, 792,915.75 and 173,727.90 is: 260,493.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,809.22 : 792,915.75 = 173,727.90 : x
  2. Step 2: Convert to fraction form
    528,809.22/792,915.75 = 173,727.90/x
  3. Step 3: Cross multiply
    528,809.22x = 792,915.75 × 173,727.90
  4. Step 4: Simplify right side
    528,809.22x = 137,751,588,124.43
  5. Step 5: Solve for x
    x = 137,751,588,124.43/528,809.22
  6. Step 6: Final answer
    x = 260,493.92

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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.