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Finding the Fourth Proportional to 455,389.56, 683,117.28 and 174,906.81

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Solution

The fourth proportional to 455,389.56, 683,117.28 and 174,906.81 is: 262,372.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,389.56 : 683,117.28 = 174,906.81 : x
  2. Step 2: Convert to fraction form
    455,389.56/683,117.28 = 174,906.81/x
  3. Step 3: Cross multiply
    455,389.56x = 683,117.28 × 174,906.81
  4. Step 4: Simplify right side
    455,389.56x = 119,481,864,300.68
  5. Step 5: Solve for x
    x = 119,481,864,300.68/455,389.56
  6. Step 6: Final answer
    x = 262,372.87

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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.