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Finding the Fourth Proportional to 354,255.60, 531,037.80 and 316,930.80

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Solution

The fourth proportional to 354,255.60, 531,037.80 and 316,930.80 is: 475,087.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,255.60 : 531,037.80 = 316,930.80 : x
  2. Step 2: Convert to fraction form
    354,255.60/531,037.80 = 316,930.80/x
  3. Step 3: Cross multiply
    354,255.60x = 531,037.80 × 316,930.80
  4. Step 4: Simplify right side
    354,255.60x = 168,302,234,784.24
  5. Step 5: Solve for x
    x = 168,302,234,784.24/354,255.60
  6. Step 6: Final answer
    x = 475,087.01

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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.