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Finding the Fourth Proportional to 468,640.15, 702,960.23 and 343,302.55

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Solution

The fourth proportional to 468,640.15, 702,960.23 and 343,302.55 is: 514,953.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,640.15 : 702,960.23 = 343,302.55 : x
  2. Step 2: Convert to fraction form
    468,640.15/702,960.23 = 343,302.55/x
  3. Step 3: Cross multiply
    468,640.15x = 702,960.23 × 343,302.55
  4. Step 4: Simplify right side
    468,640.15x = 241,328,039,507.59
  5. Step 5: Solve for x
    x = 241,328,039,507.59/468,640.15
  6. Step 6: Final answer
    x = 514,953.83

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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.