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Finding the Fourth Proportional to 436,694.76, 655,342.78 and 152,386.92

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Solution

The fourth proportional to 436,694.76, 655,342.78 and 152,386.92 is: 228,685.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,694.76 : 655,342.78 = 152,386.92 : x
  2. Step 2: Convert to fraction form
    436,694.76/655,342.78 = 152,386.92/x
  3. Step 3: Cross multiply
    436,694.76x = 655,342.78 × 152,386.92
  4. Step 4: Simplify right side
    436,694.76x = 99,865,667,788.44
  5. Step 5: Solve for x
    x = 99,865,667,788.44/436,694.76
  6. Step 6: Final answer
    x = 228,685.29

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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.