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Finding the Fourth Proportional to 422,319.24, 631,889.64 and 296,205.59

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Solution

The fourth proportional to 422,319.24, 631,889.64 and 296,205.59 is: 443,193.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,319.24 : 631,889.64 = 296,205.59 : x
  2. Step 2: Convert to fraction form
    422,319.24/631,889.64 = 296,205.59/x
  3. Step 3: Cross multiply
    422,319.24x = 631,889.64 × 296,205.59
  4. Step 4: Simplify right side
    422,319.24x = 187,169,245,210.81
  5. Step 5: Solve for x
    x = 187,169,245,210.81/422,319.24
  6. Step 6: Final answer
    x = 443,193.74

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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.