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Finding the Fourth Proportional to 324,034.70, 485,468.85 and 264,548.30

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Solution

The fourth proportional to 324,034.70, 485,468.85 and 264,548.30 is: 396,346.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,034.70 : 485,468.85 = 264,548.30 : x
  2. Step 2: Convert to fraction form
    324,034.70/485,468.85 = 264,548.30/x
  3. Step 3: Cross multiply
    324,034.70x = 485,468.85 × 264,548.30
  4. Step 4: Simplify right side
    324,034.70x = 128,429,958,970.46
  5. Step 5: Solve for x
    x = 128,429,958,970.46/324,034.70
  6. Step 6: Final answer
    x = 396,346.31

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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.