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Finding the Fourth Proportional to 353,898.03, 530,322.17 and 259,944.51

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Solution

The fourth proportional to 353,898.03, 530,322.17 and 259,944.51 is: 389,531.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,898.03 : 530,322.17 = 259,944.51 : x
  2. Step 2: Convert to fraction form
    353,898.03/530,322.17 = 259,944.51/x
  3. Step 3: Cross multiply
    353,898.03x = 530,322.17 × 259,944.51
  4. Step 4: Simplify right side
    353,898.03x = 137,854,338,450.43
  5. Step 5: Solve for x
    x = 137,854,338,450.43/353,898.03
  6. Step 6: Final answer
    x = 389,531.24

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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.