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Finding the Fourth Proportional to 439,504.60, 659,256.90 and 158,956.24

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Solution

The fourth proportional to 439,504.60, 659,256.90 and 158,956.24 is: 238,434.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,504.60 : 659,256.90 = 158,956.24 : x
  2. Step 2: Convert to fraction form
    439,504.60/659,256.90 = 158,956.24/x
  3. Step 3: Cross multiply
    439,504.60x = 659,256.90 × 158,956.24
  4. Step 4: Simplify right side
    439,504.60x = 104,792,998,018.06
  5. Step 5: Solve for x
    x = 104,792,998,018.06/439,504.60
  6. Step 6: Final answer
    x = 238,434.36

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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.