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Finding the Fourth Proportional to 493,126.22, 739,710.42 and 193,671.72

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Solution

The fourth proportional to 493,126.22, 739,710.42 and 193,671.72 is: 290,515.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,126.22 : 739,710.42 = 193,671.72 : x
  2. Step 2: Convert to fraction form
    493,126.22/739,710.42 = 193,671.72/x
  3. Step 3: Cross multiply
    493,126.22x = 739,710.42 × 193,671.72
  4. Step 4: Simplify right side
    493,126.22x = 143,260,989,343.32
  5. Step 5: Solve for x
    x = 143,260,989,343.32/493,126.22
  6. Step 6: Final answer
    x = 290,515.86

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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.