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Finding the Fourth Proportional to 590,643.63, 815,165.94 and 332,570.86

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Solution

The fourth proportional to 590,643.63, 815,165.94 and 332,570.86 is: 458,991.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,643.63 : 815,165.94 = 332,570.86 : x
  2. Step 2: Convert to fraction form
    590,643.63/815,165.94 = 332,570.86/x
  3. Step 3: Cross multiply
    590,643.63x = 815,165.94 × 332,570.86
  4. Step 4: Simplify right side
    590,643.63x = 271,100,438,083.57
  5. Step 5: Solve for x
    x = 271,100,438,083.57/590,643.63
  6. Step 6: Final answer
    x = 458,991.56

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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.