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Finding the Fourth Proportional to 493,715.20, 740,572.80 and 325,753.60

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Solution

The fourth proportional to 493,715.20, 740,572.80 and 325,753.60 is: 488,630.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,715.20 : 740,572.80 = 325,753.60 : x
  2. Step 2: Convert to fraction form
    493,715.20/740,572.80 = 325,753.60/x
  3. Step 3: Cross multiply
    493,715.20x = 740,572.80 × 325,753.60
  4. Step 4: Simplify right side
    493,715.20x = 241,244,255,662.08
  5. Step 5: Solve for x
    x = 241,244,255,662.08/493,715.20
  6. Step 6: Final answer
    x = 488,630.40

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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.