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Finding the Fourth Proportional to 362,218.80, 543,328.20 and 220,501.20

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Solution

The fourth proportional to 362,218.80, 543,328.20 and 220,501.20 is: 330,751.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,218.80 : 543,328.20 = 220,501.20 : x
  2. Step 2: Convert to fraction form
    362,218.80/543,328.20 = 220,501.20/x
  3. Step 3: Cross multiply
    362,218.80x = 543,328.20 × 220,501.20
  4. Step 4: Simplify right side
    362,218.80x = 119,804,520,093.84
  5. Step 5: Solve for x
    x = 119,804,520,093.84/362,218.80
  6. Step 6: Final answer
    x = 330,751.80

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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.