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Finding the Fourth Proportional to 593,193.72, 818,603.28 and 321,255.36

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Solution

The fourth proportional to 593,193.72, 818,603.28 and 321,255.36 is: 443,330.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,193.72 : 818,603.28 = 321,255.36 : x
  2. Step 2: Convert to fraction form
    593,193.72/818,603.28 = 321,255.36/x
  3. Step 3: Cross multiply
    593,193.72x = 818,603.28 × 321,255.36
  4. Step 4: Simplify right side
    593,193.72x = 262,980,691,413.58
  5. Step 5: Solve for x
    x = 262,980,691,413.58/593,193.72
  6. Step 6: Final answer
    x = 443,330.20

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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.