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Finding the Fourth Proportional to 296,846.40, 445,269.60 and 75,230.40

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Solution

The fourth proportional to 296,846.40, 445,269.60 and 75,230.40 is: 112,845.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,846.40 : 445,269.60 = 75,230.40 : x
  2. Step 2: Convert to fraction form
    296,846.40/445,269.60 = 75,230.40/x
  3. Step 3: Cross multiply
    296,846.40x = 445,269.60 × 75,230.40
  4. Step 4: Simplify right side
    296,846.40x = 33,497,810,115.84
  5. Step 5: Solve for x
    x = 33,497,810,115.84/296,846.40
  6. Step 6: Final answer
    x = 112,845.60

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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.