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Finding the Fourth Proportional to 534,912.70, 802,369.05 and 239,424.70

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Solution

The fourth proportional to 534,912.70, 802,369.05 and 239,424.70 is: 359,137.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,912.70 : 802,369.05 = 239,424.70 : x
  2. Step 2: Convert to fraction form
    534,912.70/802,369.05 = 239,424.70/x
  3. Step 3: Cross multiply
    534,912.70x = 802,369.05 × 239,424.70
  4. Step 4: Simplify right side
    534,912.70x = 192,106,969,085.54
  5. Step 5: Solve for x
    x = 192,106,969,085.54/534,912.70
  6. Step 6: Final answer
    x = 359,137.05

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1.5x scale

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.