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Finding the Fourth Proportional to 404,772.40, 606,828.84 and 151,910.80

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Solution

The fourth proportional to 404,772.40, 606,828.84 and 151,910.80 is: 227,742.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,772.40 : 606,828.84 = 151,910.80 : x
  2. Step 2: Convert to fraction form
    404,772.40/606,828.84 = 151,910.80/x
  3. Step 3: Cross multiply
    404,772.40x = 606,828.84 × 151,910.80
  4. Step 4: Simplify right side
    404,772.40x = 92,183,854,547.47
  5. Step 5: Solve for x
    x = 92,183,854,547.47/404,772.40
  6. Step 6: Final answer
    x = 227,742.44

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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.