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Finding the Fourth Proportional to 538,247.40, 807,371.10 and 164,269.80

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Solution

The fourth proportional to 538,247.40, 807,371.10 and 164,269.80 is: 246,404.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,247.40 : 807,371.10 = 164,269.80 : x
  2. Step 2: Convert to fraction form
    538,247.40/807,371.10 = 164,269.80/x
  3. Step 3: Cross multiply
    538,247.40x = 807,371.10 × 164,269.80
  4. Step 4: Simplify right side
    538,247.40x = 132,626,689,122.78
  5. Step 5: Solve for x
    x = 132,626,689,122.78/538,247.40
  6. Step 6: Final answer
    x = 246,404.70

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Similar ratio
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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.