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Finding the Fourth Proportional to 296,638.69, 444,958.19 and 71,999.47

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Solution

The fourth proportional to 296,638.69, 444,958.19 and 71,999.47 is: 107,999.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,638.69 : 444,958.19 = 71,999.47 : x
  2. Step 2: Convert to fraction form
    296,638.69/444,958.19 = 71,999.47/x
  3. Step 3: Cross multiply
    296,638.69x = 444,958.19 × 71,999.47
  4. Step 4: Simplify right side
    296,638.69x = 32,036,753,852.16
  5. Step 5: Solve for x
    x = 32,036,753,852.16/296,638.69
  6. Step 6: Final answer
    x = 107,999.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.