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Finding the Fourth Proportional to 362,572.20, 543,858.30 and 220,854.60

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Solution

The fourth proportional to 362,572.20, 543,858.30 and 220,854.60 is: 331,281.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,572.20 : 543,858.30 = 220,854.60 : x
  2. Step 2: Convert to fraction form
    362,572.20/543,858.30 = 220,854.60/x
  3. Step 3: Cross multiply
    362,572.20x = 543,858.30 × 220,854.60
  4. Step 4: Simplify right side
    362,572.20x = 120,113,607,303.18
  5. Step 5: Solve for x
    x = 120,113,607,303.18/362,572.20
  6. Step 6: Final answer
    x = 331,281.90

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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.