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Finding the Fourth Proportional to 608,630.14, 913,336.89 and 328,340.86

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Solution

The fourth proportional to 608,630.14, 913,336.89 and 328,340.86 is: 492,722.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,630.14 : 913,336.89 = 328,340.86 : x
  2. Step 2: Convert to fraction form
    608,630.14/913,336.89 = 328,340.86/x
  3. Step 3: Cross multiply
    608,630.14x = 913,336.89 × 328,340.86
  4. Step 4: Simplify right side
    608,630.14x = 299,885,819,932.33
  5. Step 5: Solve for x
    x = 299,885,819,932.33/608,630.14
  6. Step 6: Final answer
    x = 492,722.59

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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.