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Finding the Fourth Proportional to 581,039.60, 869,684.51 and 300,170.48

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Solution

The fourth proportional to 581,039.60, 869,684.51 and 300,170.48 is: 449,287.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,039.60 : 869,684.51 = 300,170.48 : x
  2. Step 2: Convert to fraction form
    581,039.60/869,684.51 = 300,170.48/x
  3. Step 3: Cross multiply
    581,039.60x = 869,684.51 × 300,170.48
  4. Step 4: Simplify right side
    581,039.60x = 261,053,613,217.27
  5. Step 5: Solve for x
    x = 261,053,613,217.27/581,039.60
  6. Step 6: Final answer
    x = 449,287.13

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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.