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Finding the Fourth Proportional to 538,417.60, 807,626.40 and 164,440.60

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Solution

The fourth proportional to 538,417.60, 807,626.40 and 164,440.60 is: 246,660.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,417.60 : 807,626.40 = 164,440.60 : x
  2. Step 2: Convert to fraction form
    538,417.60/807,626.40 = 164,440.60/x
  3. Step 3: Cross multiply
    538,417.60x = 807,626.40 × 164,440.60
  4. Step 4: Simplify right side
    538,417.60x = 132,806,569,791.84
  5. Step 5: Solve for x
    x = 132,806,569,791.84/538,417.60
  6. Step 6: Final answer
    x = 246,660.90

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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.