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Finding the Fourth Proportional to 299,808.22, 413,751.36 and 172,503.22

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Solution

The fourth proportional to 299,808.22, 413,751.36 and 172,503.22 is: 238,063.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,808.22 : 413,751.36 = 172,503.22 : x
  2. Step 2: Convert to fraction form
    299,808.22/413,751.36 = 172,503.22/x
  3. Step 3: Cross multiply
    299,808.22x = 413,751.36 × 172,503.22
  4. Step 4: Simplify right side
    299,808.22x = 71,373,441,879.38
  5. Step 5: Solve for x
    x = 71,373,441,879.38/299,808.22
  6. Step 6: Final answer
    x = 238,063.66

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1.5x scale

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.