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Finding the Fourth Proportional to 354,590.60, 531,011.10 and 235,617.80

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Solution

The fourth proportional to 354,590.60, 531,011.10 and 235,617.80 is: 352,845.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,590.60 : 531,011.10 = 235,617.80 : x
  2. Step 2: Convert to fraction form
    354,590.60/531,011.10 = 235,617.80/x
  3. Step 3: Cross multiply
    354,590.60x = 531,011.10 × 235,617.80
  4. Step 4: Simplify right side
    354,590.60x = 125,115,667,157.58
  5. Step 5: Solve for x
    x = 125,115,667,157.58/354,590.60
  6. Step 6: Final answer
    x = 352,845.41

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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.