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Finding the Fourth Proportional to 593,174.10, 818,570.15 and 321,239.79

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Solution

The fourth proportional to 593,174.10, 818,570.15 and 321,239.79 is: 443,305.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,174.10 : 818,570.15 = 321,239.79 : x
  2. Step 2: Convert to fraction form
    593,174.10/818,570.15 = 321,239.79/x
  3. Step 3: Cross multiply
    593,174.10x = 818,570.15 × 321,239.79
  4. Step 4: Simplify right side
    593,174.10x = 262,957,301,480.07
  5. Step 5: Solve for x
    x = 262,957,301,480.07/593,174.10
  6. Step 6: Final answer
    x = 443,305.43

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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.