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Finding the Fourth Proportional to 406,755.96, 561,343.80 and 234,609.88

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Solution

The fourth proportional to 406,755.96, 561,343.80 and 234,609.88 is: 323,773.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,755.96 : 561,343.80 = 234,609.88 : x
  2. Step 2: Convert to fraction form
    406,755.96/561,343.80 = 234,609.88/x
  3. Step 3: Cross multiply
    406,755.96x = 561,343.80 × 234,609.88
  4. Step 4: Simplify right side
    406,755.96x = 131,696,801,556.74
  5. Step 5: Solve for x
    x = 131,696,801,556.74/406,755.96
  6. Step 6: Final answer
    x = 323,773.50

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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.