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Finding the Fourth Proportional to 593,105.54, 818,484.15 and 321,173.42

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Solution

The fourth proportional to 593,105.54, 818,484.15 and 321,173.42 is: 443,218.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,105.54 : 818,484.15 = 321,173.42 : x
  2. Step 2: Convert to fraction form
    593,105.54/818,484.15 = 321,173.42/x
  3. Step 3: Cross multiply
    593,105.54x = 818,484.15 × 321,173.42
  4. Step 4: Simplify right side
    593,105.54x = 262,875,349,578.87
  5. Step 5: Solve for x
    x = 262,875,349,578.87/593,105.54
  6. Step 6: Final answer
    x = 443,218.51

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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.