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Finding the Fourth Proportional to 470,785.61, 649,688.37 and 255,926.09

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Solution

The fourth proportional to 470,785.61, 649,688.37 and 255,926.09 is: 353,180.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,785.61 : 649,688.37 = 255,926.09 : x
  2. Step 2: Convert to fraction form
    470,785.61/649,688.37 = 255,926.09/x
  3. Step 3: Cross multiply
    470,785.61x = 649,688.37 × 255,926.09
  4. Step 4: Simplify right side
    470,785.61x = 166,272,204,252.57
  5. Step 5: Solve for x
    x = 166,272,204,252.57/470,785.61
  6. Step 6: Final answer
    x = 353,180.30

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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.