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Finding the Fourth Proportional to 355,310.40, 532,965.60 and 236,596.80

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Solution

The fourth proportional to 355,310.40, 532,965.60 and 236,596.80 is: 354,895.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,310.40 : 532,965.60 = 236,596.80 : x
  2. Step 2: Convert to fraction form
    355,310.40/532,965.60 = 236,596.80/x
  3. Step 3: Cross multiply
    355,310.40x = 532,965.60 × 236,596.80
  4. Step 4: Simplify right side
    355,310.40x = 126,097,955,470.08
  5. Step 5: Solve for x
    x = 126,097,955,470.08/355,310.40
  6. Step 6: Final answer
    x = 354,895.20

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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.