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Finding the Fourth Proportional to 605,488.63, 908,361.12 and 178,990.82

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Solution

The fourth proportional to 605,488.63, 908,361.12 and 178,990.82 is: 268,524.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,488.63 : 908,361.12 = 178,990.82 : x
  2. Step 2: Convert to fraction form
    605,488.63/908,361.12 = 178,990.82/x
  3. Step 3: Cross multiply
    605,488.63x = 908,361.12 × 178,990.82
  4. Step 4: Simplify right side
    605,488.63x = 162,588,301,724.92
  5. Step 5: Solve for x
    x = 162,588,301,724.92/605,488.63
  6. Step 6: Final answer
    x = 268,524.12

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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.