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Finding the Fourth Proportional to 394,911.60, 592,505.64 and 114,445.68

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Solution

The fourth proportional to 394,911.60, 592,505.64 and 114,445.68 is: 171,708.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,911.60 : 592,505.64 = 114,445.68 : x
  2. Step 2: Convert to fraction form
    394,911.60/592,505.64 = 114,445.68/x
  3. Step 3: Cross multiply
    394,911.60x = 592,505.64 × 114,445.68
  4. Step 4: Simplify right side
    394,911.60x = 67,809,710,873.64
  5. Step 5: Solve for x
    x = 67,809,710,873.64/394,911.60
  6. Step 6: Final answer
    x = 171,708.58

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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.