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Finding the Fourth Proportional to 508,731.67, 763,205.51 and 193,181.59

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Solution

The fourth proportional to 508,731.67, 763,205.51 and 193,181.59 is: 289,813.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,731.67 : 763,205.51 = 193,181.59 : x
  2. Step 2: Convert to fraction form
    508,731.67/763,205.51 = 193,181.59/x
  3. Step 3: Cross multiply
    508,731.67x = 763,205.51 × 193,181.59
  4. Step 4: Simplify right side
    508,731.67x = 147,437,253,918.56
  5. Step 5: Solve for x
    x = 147,437,253,918.56/508,731.67
  6. Step 6: Final answer
    x = 289,813.40

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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.