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Finding the Fourth Proportional to 437,928.22, 656,600.64 and 157,409.02

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Solution

The fourth proportional to 437,928.22, 656,600.64 and 157,409.02 is: 236,008.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,928.22 : 656,600.64 = 157,409.02 : x
  2. Step 2: Convert to fraction form
    437,928.22/656,600.64 = 157,409.02/x
  3. Step 3: Cross multiply
    437,928.22x = 656,600.64 × 157,409.02
  4. Step 4: Simplify right side
    437,928.22x = 103,354,863,273.77
  5. Step 5: Solve for x
    x = 103,354,863,273.77/437,928.22
  6. Step 6: Final answer
    x = 236,008.68

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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.