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Finding the Fourth Proportional to 348,998.22, 523,499.76 and 191,140.56

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Solution

The fourth proportional to 348,998.22, 523,499.76 and 191,140.56 is: 286,712.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,998.22 : 523,499.76 = 191,140.56 : x
  2. Step 2: Convert to fraction form
    348,998.22/523,499.76 = 191,140.56/x
  3. Step 3: Cross multiply
    348,998.22x = 523,499.76 × 191,140.56
  4. Step 4: Simplify right side
    348,998.22x = 100,062,037,286.27
  5. Step 5: Solve for x
    x = 100,062,037,286.27/348,998.22
  6. Step 6: Final answer
    x = 286,712.17

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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.