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Finding the Fourth Proportional to 257,000.89, 354,772.44 and 193,354.33

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Solution

The fourth proportional to 257,000.89, 354,772.44 and 193,354.33 is: 266,912.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,000.89 : 354,772.44 = 193,354.33 : x
  2. Step 2: Convert to fraction form
    257,000.89/354,772.44 = 193,354.33/x
  3. Step 3: Cross multiply
    257,000.89x = 354,772.44 × 193,354.33
  4. Step 4: Simplify right side
    257,000.89x = 68,596,787,438.67
  5. Step 5: Solve for x
    x = 68,596,787,438.67/257,000.89
  6. Step 6: Final answer
    x = 266,912.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.