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Finding the Fourth Proportional to 283,554, 391,291.92 and 154,492.92

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Solution

The fourth proportional to 283,554, 391,291.92 and 154,492.92 is: 213,193.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,554 : 391,291.92 = 154,492.92 : x
  2. Step 2: Convert to fraction form
    283,554/391,291.92 = 154,492.92/x
  3. Step 3: Cross multiply
    283,554x = 391,291.92 × 154,492.92
  4. Step 4: Simplify right side
    283,554x = 60,451,831,293.21
  5. Step 5: Solve for x
    x = 60,451,831,293.21/283,554
  6. Step 6: Final answer
    x = 213,193.36

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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.