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Finding the Fourth Proportional to 470,049.99, 648,676.80 and 255,190.11

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Solution

The fourth proportional to 470,049.99, 648,676.80 and 255,190.11 is: 352,166.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,049.99 : 648,676.80 = 255,190.11 : x
  2. Step 2: Convert to fraction form
    470,049.99/648,676.80 = 255,190.11/x
  3. Step 3: Cross multiply
    470,049.99x = 648,676.80 × 255,190.11
  4. Step 4: Simplify right side
    470,049.99x = 165,535,903,946.45
  5. Step 5: Solve for x
    x = 165,535,903,946.45/470,049.99
  6. Step 6: Final answer
    x = 352,166.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.