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Finding the Fourth Proportional to 522,489.66, 783,865.70 and 148,512.66

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Solution

The fourth proportional to 522,489.66, 783,865.70 and 148,512.66 is: 222,806.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,489.66 : 783,865.70 = 148,512.66 : x
  2. Step 2: Convert to fraction form
    522,489.66/783,865.70 = 148,512.66/x
  3. Step 3: Cross multiply
    522,489.66x = 783,865.70 × 148,512.66
  4. Step 4: Simplify right side
    522,489.66x = 116,413,977,900.01
  5. Step 5: Solve for x
    x = 116,413,977,900.01/522,489.66
  6. Step 6: Final answer
    x = 222,806.28

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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.