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Finding the Fourth Proportional to 515,484.98, 773,338.69 and 155,625.98

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Solution

The fourth proportional to 515,484.98, 773,338.69 and 155,625.98 is: 233,472.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,484.98 : 773,338.69 = 155,625.98 : x
  2. Step 2: Convert to fraction form
    515,484.98/773,338.69 = 155,625.98/x
  3. Step 3: Cross multiply
    515,484.98x = 773,338.69 × 155,625.98
  4. Step 4: Simplify right side
    515,484.98x = 120,351,587,831.01
  5. Step 5: Solve for x
    x = 120,351,587,831.01/515,484.98
  6. Step 6: Final answer
    x = 233,472.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.