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Finding the Fourth Proportional to 440,647.15, 660,933.81 and 174,336.16

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Solution

The fourth proportional to 440,647.15, 660,933.81 and 174,336.16 is: 261,489.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,647.15 : 660,933.81 = 174,336.16 : x
  2. Step 2: Convert to fraction form
    440,647.15/660,933.81 = 174,336.16/x
  3. Step 3: Cross multiply
    440,647.15x = 660,933.81 × 174,336.16
  4. Step 4: Simplify right side
    440,647.15x = 115,224,662,449.57
  5. Step 5: Solve for x
    x = 115,224,662,449.57/440,647.15
  6. Step 6: Final answer
    x = 261,489.64

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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.