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Finding the Fourth Proportional to 603,562.78, 905,484.32 and 177,081.38

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Solution

The fourth proportional to 603,562.78, 905,484.32 and 177,081.38 is: 265,663.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,562.78 : 905,484.32 = 177,081.38 : x
  2. Step 2: Convert to fraction form
    603,562.78/905,484.32 = 177,081.38/x
  3. Step 3: Cross multiply
    603,562.78x = 905,484.32 × 177,081.38
  4. Step 4: Simplify right side
    603,562.78x = 160,344,412,953.96
  5. Step 5: Solve for x
    x = 160,344,412,953.96/603,562.78
  6. Step 6: Final answer
    x = 265,663.19

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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.