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Finding the Fourth Proportional to 543,024.15, 813,453.66 and 424,138.83

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Solution

The fourth proportional to 543,024.15, 813,453.66 and 424,138.83 is: 635,362.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,024.15 : 813,453.66 = 424,138.83 : x
  2. Step 2: Convert to fraction form
    543,024.15/813,453.66 = 424,138.83/x
  3. Step 3: Cross multiply
    543,024.15x = 813,453.66 × 424,138.83
  4. Step 4: Simplify right side
    543,024.15x = 345,017,283,611.62
  5. Step 5: Solve for x
    x = 345,017,283,611.62/543,024.15
  6. Step 6: Final answer
    x = 635,362.69

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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.