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Finding the Fourth Proportional to 608,632.14, 913,339.89 and 328,342.86

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Solution

The fourth proportional to 608,632.14, 913,339.89 and 328,342.86 is: 492,725.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,632.14 : 913,339.89 = 328,342.86 : x
  2. Step 2: Convert to fraction form
    608,632.14/913,339.89 = 328,342.86/x
  3. Step 3: Cross multiply
    608,632.14x = 913,339.89 × 328,342.86
  4. Step 4: Simplify right side
    608,632.14x = 299,888,631,634.69
  5. Step 5: Solve for x
    x = 299,888,631,634.69/608,632.14
  6. Step 6: Final answer
    x = 492,725.59

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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.