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Finding the Fourth Proportional to 362,178.80, 543,268.20 and 228,334.40

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Solution

The fourth proportional to 362,178.80, 543,268.20 and 228,334.40 is: 342,501.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,178.80 : 543,268.20 = 228,334.40 : x
  2. Step 2: Convert to fraction form
    362,178.80/543,268.20 = 228,334.40/x
  3. Step 3: Cross multiply
    362,178.80x = 543,268.20 × 228,334.40
  4. Step 4: Simplify right side
    362,178.80x = 124,046,818,486.08
  5. Step 5: Solve for x
    x = 124,046,818,486.08/362,178.80
  6. Step 6: Final answer
    x = 342,501.60

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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.