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Finding the Fourth Proportional to 283,454, 391,138.14 and 174,540.88

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Solution

The fourth proportional to 283,454, 391,138.14 and 174,540.88 is: 240,848.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,454 : 391,138.14 = 174,540.88 : x
  2. Step 2: Convert to fraction form
    283,454/391,138.14 = 174,540.88/x
  3. Step 3: Cross multiply
    283,454x = 391,138.14 × 174,540.88
  4. Step 4: Simplify right side
    283,454x = 68,269,595,157.16
  5. Step 5: Solve for x
    x = 68,269,595,157.16/283,454
  6. Step 6: Final answer
    x = 240,848.94

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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.