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Finding the Fourth Proportional to 450,319.59, 675,561.24 and 213,660.09

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Solution

The fourth proportional to 450,319.59, 675,561.24 and 213,660.09 is: 320,528.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,319.59 : 675,561.24 = 213,660.09 : x
  2. Step 2: Convert to fraction form
    450,319.59/675,561.24 = 213,660.09/x
  3. Step 3: Cross multiply
    450,319.59x = 675,561.24 × 213,660.09
  4. Step 4: Simplify right side
    450,319.59x = 144,340,475,338.91
  5. Step 5: Solve for x
    x = 144,340,475,338.91/450,319.59
  6. Step 6: Final answer
    x = 320,528.97

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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.