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Finding the Fourth Proportional to 543,321.70, 813,427.35 and 481,113.70

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Solution

The fourth proportional to 543,321.70, 813,427.35 and 481,113.70 is: 720,293.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,321.70 : 813,427.35 = 481,113.70 : x
  2. Step 2: Convert to fraction form
    543,321.70/813,427.35 = 481,113.70/x
  3. Step 3: Cross multiply
    543,321.70x = 813,427.35 × 481,113.70
  4. Step 4: Simplify right side
    543,321.70x = 391,351,042,039.70
  5. Step 5: Solve for x
    x = 391,351,042,039.70/543,321.70
  6. Step 6: Final answer
    x = 720,293.41

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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.