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Finding the Fourth Proportional to 468,639.15, 702,958.73 and 343,301.55

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Solution

The fourth proportional to 468,639.15, 702,958.73 and 343,301.55 is: 514,952.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,639.15 : 702,958.73 = 343,301.55 : x
  2. Step 2: Convert to fraction form
    468,639.15/702,958.73 = 343,301.55/x
  3. Step 3: Cross multiply
    468,639.15x = 702,958.73 × 343,301.55
  4. Step 4: Simplify right side
    468,639.15x = 241,326,819,878.52
  5. Step 5: Solve for x
    x = 241,326,819,878.52/468,639.15
  6. Step 6: Final answer
    x = 514,952.33

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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.