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Finding the Fourth Proportional to 324,633.60, 448,132.32 and 197,349.84

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Solution

The fourth proportional to 324,633.60, 448,132.32 and 197,349.84 is: 272,426.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,633.60 : 448,132.32 = 197,349.84 : x
  2. Step 2: Convert to fraction form
    324,633.60/448,132.32 = 197,349.84/x
  3. Step 3: Cross multiply
    324,633.60x = 448,132.32 × 197,349.84
  4. Step 4: Simplify right side
    324,633.60x = 88,438,841,650.83
  5. Step 5: Solve for x
    x = 88,438,841,650.83/324,633.60
  6. Step 6: Final answer
    x = 272,426.64

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1.5x scale

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.