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Finding the Fourth Proportional to 482,136.39, 723,325.04 and 340,258.61

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Solution

The fourth proportional to 482,136.39, 723,325.04 and 340,258.61 is: 510,472.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,136.39 : 723,325.04 = 340,258.61 : x
  2. Step 2: Convert to fraction form
    482,136.39/723,325.04 = 340,258.61/x
  3. Step 3: Cross multiply
    482,136.39x = 723,325.04 × 340,258.61
  4. Step 4: Simplify right side
    482,136.39x = 246,117,567,370.68
  5. Step 5: Solve for x
    x = 246,117,567,370.68/482,136.39
  6. Step 6: Final answer
    x = 510,472.91

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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.