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Finding the Fourth Proportional to 298,028.50, 447,043.76 and 73,394.24

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Solution

The fourth proportional to 298,028.50, 447,043.76 and 73,394.24 is: 110,091.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,028.50 : 447,043.76 = 73,394.24 : x
  2. Step 2: Convert to fraction form
    298,028.50/447,043.76 = 73,394.24/x
  3. Step 3: Cross multiply
    298,028.50x = 447,043.76 × 73,394.24
  4. Step 4: Simplify right side
    298,028.50x = 32,810,434,684.98
  5. Step 5: Solve for x
    x = 32,810,434,684.98/298,028.50
  6. Step 6: Final answer
    x = 110,091.60

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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.