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Finding the Fourth Proportional to 330,596.64, 456,221.52 and 187,383.76

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Solution

The fourth proportional to 330,596.64, 456,221.52 and 187,383.76 is: 258,588.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,596.64 : 456,221.52 = 187,383.76 : x
  2. Step 2: Convert to fraction form
    330,596.64/456,221.52 = 187,383.76/x
  3. Step 3: Cross multiply
    330,596.64x = 456,221.52 × 187,383.76
  4. Step 4: Simplify right side
    330,596.64x = 85,488,503,810.52
  5. Step 5: Solve for x
    x = 85,488,503,810.52/330,596.64
  6. Step 6: Final answer
    x = 258,588.54

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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.