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Finding the Fourth Proportional to 471,999.96, 651,376.69 and 268,045.20

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Solution

The fourth proportional to 471,999.96, 651,376.69 and 268,045.20 is: 369,911.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,999.96 : 651,376.69 = 268,045.20 : x
  2. Step 2: Convert to fraction form
    471,999.96/651,376.69 = 268,045.20/x
  3. Step 3: Cross multiply
    471,999.96x = 651,376.69 × 268,045.20
  4. Step 4: Simplify right side
    471,999.96x = 174,598,394,476.28
  5. Step 5: Solve for x
    x = 174,598,394,476.28/471,999.96
  6. Step 6: Final answer
    x = 369,911.88

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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.