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Finding the Fourth Proportional to 492,636.72, 738,950.63 and 155,677.43

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Solution

The fourth proportional to 492,636.72, 738,950.63 and 155,677.43 is: 233,514.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,636.72 : 738,950.63 = 155,677.43 : x
  2. Step 2: Convert to fraction form
    492,636.72/738,950.63 = 155,677.43/x
  3. Step 3: Cross multiply
    492,636.72x = 738,950.63 × 155,677.43
  4. Step 4: Simplify right side
    492,636.72x = 115,037,934,975.28
  5. Step 5: Solve for x
    x = 115,037,934,975.28/492,636.72
  6. Step 6: Final answer
    x = 233,514.74

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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.