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Finding the Fourth Proportional to 572,032.68, 789,405.22 and 317,383.26

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Solution

The fourth proportional to 572,032.68, 789,405.22 and 317,383.26 is: 437,988.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,032.68 : 789,405.22 = 317,383.26 : x
  2. Step 2: Convert to fraction form
    572,032.68/789,405.22 = 317,383.26/x
  3. Step 3: Cross multiply
    572,032.68x = 789,405.22 × 317,383.26
  4. Step 4: Simplify right side
    572,032.68x = 250,544,002,184.62
  5. Step 5: Solve for x
    x = 250,544,002,184.62/572,032.68
  6. Step 6: Final answer
    x = 437,988.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.