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Finding the Fourth Proportional to 264,148.97, 396,216.32 and 74,622.40

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Solution

The fourth proportional to 264,148.97, 396,216.32 and 74,622.40 is: 111,931.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,148.97 : 396,216.32 = 74,622.40 : x
  2. Step 2: Convert to fraction form
    264,148.97/396,216.32 = 74,622.40/x
  3. Step 3: Cross multiply
    264,148.97x = 396,216.32 × 74,622.40
  4. Step 4: Simplify right side
    264,148.97x = 29,566,611,353.92
  5. Step 5: Solve for x
    x = 29,566,611,353.92/264,148.97
  6. Step 6: Final answer
    x = 111,931.58

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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.