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Finding the Fourth Proportional to 616,997.40, 925,560.90 and 196,175.40

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Solution

The fourth proportional to 616,997.40, 925,560.90 and 196,175.40 is: 294,283.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,997.40 : 925,560.90 = 196,175.40 : x
  2. Step 2: Convert to fraction form
    616,997.40/925,560.90 = 196,175.40/x
  3. Step 3: Cross multiply
    616,997.40x = 925,560.90 × 196,175.40
  4. Step 4: Simplify right side
    616,997.40x = 181,572,279,781.86
  5. Step 5: Solve for x
    x = 181,572,279,781.86/616,997.40
  6. Step 6: Final answer
    x = 294,283.70

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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.