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Finding the Fourth Proportional to 324,690.56, 448,124.16 and 197,406.08

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Solution

The fourth proportional to 324,690.56, 448,124.16 and 197,406.08 is: 272,451.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,690.56 : 448,124.16 = 197,406.08 : x
  2. Step 2: Convert to fraction form
    324,690.56/448,124.16 = 197,406.08/x
  3. Step 3: Cross multiply
    324,690.56x = 448,124.16 × 197,406.08
  4. Step 4: Simplify right side
    324,690.56x = 88,462,433,778.89
  5. Step 5: Solve for x
    x = 88,462,433,778.89/324,690.56
  6. Step 6: Final answer
    x = 272,451.51

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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.