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Finding the Fourth Proportional to 228,653.40, 342,396.90 and 181,997.40

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Solution

The fourth proportional to 228,653.40, 342,396.90 and 181,997.40 is: 272,531.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,653.40 : 342,396.90 = 181,997.40 : x
  2. Step 2: Convert to fraction form
    228,653.40/342,396.90 = 181,997.40/x
  3. Step 3: Cross multiply
    228,653.40x = 342,396.90 × 181,997.40
  4. Step 4: Simplify right side
    228,653.40x = 62,315,345,568.06
  5. Step 5: Solve for x
    x = 62,315,345,568.06/228,653.40
  6. Step 6: Final answer
    x = 272,531.90

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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.