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Finding the Fourth Proportional to 479,536.20, 718,356.60 and 243,048.60

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Solution

The fourth proportional to 479,536.20, 718,356.60 and 243,048.60 is: 364,092.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,536.20 : 718,356.60 = 243,048.60 : x
  2. Step 2: Convert to fraction form
    479,536.20/718,356.60 = 243,048.60/x
  3. Step 3: Cross multiply
    479,536.20x = 718,356.60 × 243,048.60
  4. Step 4: Simplify right side
    479,536.20x = 174,595,565,930.76
  5. Step 5: Solve for x
    x = 174,595,565,930.76/479,536.20
  6. Step 6: Final answer
    x = 364,092.57

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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.