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Finding the Fourth Proportional to 468,638.15, 702,957.23 and 343,300.55

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Solution

The fourth proportional to 468,638.15, 702,957.23 and 343,300.55 is: 514,950.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,638.15 : 702,957.23 = 343,300.55 : x
  2. Step 2: Convert to fraction form
    468,638.15/702,957.23 = 343,300.55/x
  3. Step 3: Cross multiply
    468,638.15x = 702,957.23 × 343,300.55
  4. Step 4: Simplify right side
    468,638.15x = 241,325,603,685.48
  5. Step 5: Solve for x
    x = 241,325,603,685.48/468,638.15
  6. Step 6: Final answer
    x = 514,950.83

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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.