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Finding the Fourth Proportional to 406,796.78, 561,384.63 and 234,750.45

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Solution

The fourth proportional to 406,796.78, 561,384.63 and 234,750.45 is: 323,958.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,796.78 : 561,384.63 = 234,750.45 : x
  2. Step 2: Convert to fraction form
    406,796.78/561,384.63 = 234,750.45/x
  3. Step 3: Cross multiply
    406,796.78x = 561,384.63 × 234,750.45
  4. Step 4: Simplify right side
    406,796.78x = 131,785,294,515.58
  5. Step 5: Solve for x
    x = 131,785,294,515.58/406,796.78
  6. Step 6: Final answer
    x = 323,958.55

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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.