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Finding the Fourth Proportional to 572,345.34, 789,797.01 and 317,676.48

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Solution

The fourth proportional to 572,345.34, 789,797.01 and 317,676.48 is: 438,371.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,345.34 : 789,797.01 = 317,676.48 : x
  2. Step 2: Convert to fraction form
    572,345.34/789,797.01 = 317,676.48/x
  3. Step 3: Cross multiply
    572,345.34x = 789,797.01 × 317,676.48
  4. Step 4: Simplify right side
    572,345.34x = 250,899,934,051.33
  5. Step 5: Solve for x
    x = 250,899,934,051.33/572,345.34
  6. Step 6: Final answer
    x = 438,371.59

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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.