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Finding the Fourth Proportional to 479,537.20, 718,358.10 and 243,049.60

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Solution

The fourth proportional to 479,537.20, 718,358.10 and 243,049.60 is: 364,094.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,537.20 : 718,358.10 = 243,049.60 : x
  2. Step 2: Convert to fraction form
    479,537.20/718,358.10 = 243,049.60/x
  3. Step 3: Cross multiply
    479,537.20x = 718,358.10 × 243,049.60
  4. Step 4: Simplify right side
    479,537.20x = 174,596,648,861.76
  5. Step 5: Solve for x
    x = 174,596,648,861.76/479,537.20
  6. Step 6: Final answer
    x = 364,094.07

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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.