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Finding the Fourth Proportional to 351,024.60, 525,662.10 and 281,040.60

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Solution

The fourth proportional to 351,024.60, 525,662.10 and 281,040.60 is: 420,860.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,024.60 : 525,662.10 = 281,040.60 : x
  2. Step 2: Convert to fraction form
    351,024.60/525,662.10 = 281,040.60/x
  3. Step 3: Cross multiply
    351,024.60x = 525,662.10 × 281,040.60
  4. Step 4: Simplify right side
    351,024.60x = 147,732,391,981.26
  5. Step 5: Solve for x
    x = 147,732,391,981.26/351,024.60
  6. Step 6: Final answer
    x = 420,860.51

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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.