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Finding the Fourth Proportional to 436,782.67, 655,331.66 and 152,515.11

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Solution

The fourth proportional to 436,782.67, 655,331.66 and 152,515.11 is: 228,827.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,782.67 : 655,331.66 = 152,515.11 : x
  2. Step 2: Convert to fraction form
    436,782.67/655,331.66 = 152,515.11/x
  3. Step 3: Cross multiply
    436,782.67x = 655,331.66 × 152,515.11
  4. Step 4: Simplify right side
    436,782.67x = 99,947,980,211.38
  5. Step 5: Solve for x
    x = 99,947,980,211.38/436,782.67
  6. Step 6: Final answer
    x = 228,827.71

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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.