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Finding the Fourth Proportional to 365,542.70, 548,314.05 and 155,153.30

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Solution

The fourth proportional to 365,542.70, 548,314.05 and 155,153.30 is: 232,729.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,542.70 : 548,314.05 = 155,153.30 : x
  2. Step 2: Convert to fraction form
    365,542.70/548,314.05 = 155,153.30/x
  3. Step 3: Cross multiply
    365,542.70x = 548,314.05 × 155,153.30
  4. Step 4: Simplify right side
    365,542.70x = 85,072,734,293.87
  5. Step 5: Solve for x
    x = 85,072,734,293.87/365,542.70
  6. Step 6: Final answer
    x = 232,729.95

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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.