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Finding the Fourth Proportional to 423,878.63, 635,792.20 and 150,338.39

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Solution

The fourth proportional to 423,878.63, 635,792.20 and 150,338.39 is: 225,498.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,878.63 : 635,792.20 = 150,338.39 : x
  2. Step 2: Convert to fraction form
    423,878.63/635,792.20 = 150,338.39/x
  3. Step 3: Cross multiply
    423,878.63x = 635,792.20 × 150,338.39
  4. Step 4: Simplify right side
    423,878.63x = 95,583,974,970.87
  5. Step 5: Solve for x
    x = 95,583,974,970.87/423,878.63
  6. Step 6: Final answer
    x = 225,498.45

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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.