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Finding the Fourth Proportional to 311,949.80, 467,924.70 and 298,827.80

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Solution

The fourth proportional to 311,949.80, 467,924.70 and 298,827.80 is: 448,241.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,949.80 : 467,924.70 = 298,827.80 : x
  2. Step 2: Convert to fraction form
    311,949.80/467,924.70 = 298,827.80/x
  3. Step 3: Cross multiply
    311,949.80x = 467,924.70 × 298,827.80
  4. Step 4: Simplify right side
    311,949.80x = 139,828,908,666.66
  5. Step 5: Solve for x
    x = 139,828,908,666.66/311,949.80
  6. Step 6: Final answer
    x = 448,241.70

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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.