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Finding the Fourth Proportional to 459,486.92, 634,120.98 and 258,295.88

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Solution

The fourth proportional to 459,486.92, 634,120.98 and 258,295.88 is: 356,464.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,486.92 : 634,120.98 = 258,295.88 : x
  2. Step 2: Convert to fraction form
    459,486.92/634,120.98 = 258,295.88/x
  3. Step 3: Cross multiply
    459,486.92x = 634,120.98 × 258,295.88
  4. Step 4: Simplify right side
    459,486.92x = 163,790,836,555.56
  5. Step 5: Solve for x
    x = 163,790,836,555.56/459,486.92
  6. Step 6: Final answer
    x = 356,464.63

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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.