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Finding the Fourth Proportional to 608,493.19, 913,188.25 and 288,645.97

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Solution

The fourth proportional to 608,493.19, 913,188.25 and 288,645.97 is: 433,181.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,493.19 : 913,188.25 = 288,645.97 : x
  2. Step 2: Convert to fraction form
    608,493.19/913,188.25 = 288,645.97/x
  3. Step 3: Cross multiply
    608,493.19x = 913,188.25 × 288,645.97
  4. Step 4: Simplify right side
    608,493.19x = 263,588,108,948.63
  5. Step 5: Solve for x
    x = 263,588,108,948.63/608,493.19
  6. Step 6: Final answer
    x = 433,181.69

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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.