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Finding the Fourth Proportional to 451,380.60, 622,971.54 and 260,356.68

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Solution

The fourth proportional to 451,380.60, 622,971.54 and 260,356.68 is: 359,330.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,380.60 : 622,971.54 = 260,356.68 : x
  2. Step 2: Convert to fraction form
    451,380.60/622,971.54 = 260,356.68/x
  3. Step 3: Cross multiply
    451,380.60x = 622,971.54 × 260,356.68
  4. Step 4: Simplify right side
    451,380.60x = 162,194,801,888.89
  5. Step 5: Solve for x
    x = 162,194,801,888.89/451,380.60
  6. Step 6: Final answer
    x = 359,330.47

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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.