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Finding the Fourth Proportional to 364,812.80, 547,219.20 and 321,267.20

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Solution

The fourth proportional to 364,812.80, 547,219.20 and 321,267.20 is: 481,900.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,812.80 : 547,219.20 = 321,267.20 : x
  2. Step 2: Convert to fraction form
    364,812.80/547,219.20 = 321,267.20/x
  3. Step 3: Cross multiply
    364,812.80x = 547,219.20 × 321,267.20
  4. Step 4: Simplify right side
    364,812.80x = 175,803,580,170.24
  5. Step 5: Solve for x
    x = 175,803,580,170.24/364,812.80
  6. Step 6: Final answer
    x = 481,900.80

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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.