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Finding the Fourth Proportional to 476,078.99, 656,989.02 and 272,134.34

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Solution

The fourth proportional to 476,078.99, 656,989.02 and 272,134.34 is: 375,545.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,078.99 : 656,989.02 = 272,134.34 : x
  2. Step 2: Convert to fraction form
    476,078.99/656,989.02 = 272,134.34/x
  3. Step 3: Cross multiply
    476,078.99x = 656,989.02 × 272,134.34
  4. Step 4: Simplify right side
    476,078.99x = 178,789,270,060.00
  5. Step 5: Solve for x
    x = 178,789,270,060.00/476,078.99
  6. Step 6: Final answer
    x = 375,545.39

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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.