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Finding the Fourth Proportional to 415,969.28, 573,988.22 and 234,670.62

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Solution

The fourth proportional to 415,969.28, 573,988.22 and 234,670.62 is: 323,817.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,969.28 : 573,988.22 = 234,670.62 : x
  2. Step 2: Convert to fraction form
    415,969.28/573,988.22 = 234,670.62/x
  3. Step 3: Cross multiply
    415,969.28x = 573,988.22 × 234,670.62
  4. Step 4: Simplify right side
    415,969.28x = 134,698,171,460.10
  5. Step 5: Solve for x
    x = 134,698,171,460.10/415,969.28
  6. Step 6: Final answer
    x = 323,817.59

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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.