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Finding the Fourth Proportional to 459,992.28, 634,344.30 and 298,890.84

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Solution

The fourth proportional to 459,992.28, 634,344.30 and 298,890.84 is: 412,180.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,992.28 : 634,344.30 = 298,890.84 : x
  2. Step 2: Convert to fraction form
    459,992.28/634,344.30 = 298,890.84/x
  3. Step 3: Cross multiply
    459,992.28x = 634,344.30 × 298,890.84
  4. Step 4: Simplify right side
    459,992.28x = 189,599,700,676.21
  5. Step 5: Solve for x
    x = 189,599,700,676.21/459,992.28
  6. Step 6: Final answer
    x = 412,180.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.