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Finding the Fourth Proportional to 364,813.80, 547,220.70 and 252,620.70

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Solution

The fourth proportional to 364,813.80, 547,220.70 and 252,620.70 is: 378,931.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,813.80 : 547,220.70 = 252,620.70 : x
  2. Step 2: Convert to fraction form
    364,813.80/547,220.70 = 252,620.70/x
  3. Step 3: Cross multiply
    364,813.80x = 547,220.70 × 252,620.70
  4. Step 4: Simplify right side
    364,813.80x = 138,239,276,288.49
  5. Step 5: Solve for x
    x = 138,239,276,288.49/364,813.80
  6. Step 6: Final answer
    x = 378,931.05

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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.