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Finding the Fourth Proportional to 611,971.44, 917,300.88 and 295,993.68

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Solution

The fourth proportional to 611,971.44, 917,300.88 and 295,993.68 is: 443,673.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,971.44 : 917,300.88 = 295,993.68 : x
  2. Step 2: Convert to fraction form
    611,971.44/917,300.88 = 295,993.68/x
  3. Step 3: Cross multiply
    611,971.44x = 917,300.88 × 295,993.68
  4. Step 4: Simplify right side
    611,971.44x = 271,515,263,138.44
  5. Step 5: Solve for x
    x = 271,515,263,138.44/611,971.44
  6. Step 6: Final answer
    x = 443,673.10

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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.