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Finding the Fourth Proportional to 470,608.38, 649,443.62 and 255,748.39

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Solution

The fourth proportional to 470,608.38, 649,443.62 and 255,748.39 is: 352,934.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,608.38 : 649,443.62 = 255,748.39 : x
  2. Step 2: Convert to fraction form
    470,608.38/649,443.62 = 255,748.39/x
  3. Step 3: Cross multiply
    470,608.38x = 649,443.62 × 255,748.39
  4. Step 4: Simplify right side
    470,608.38x = 166,094,159,226.53
  5. Step 5: Solve for x
    x = 166,094,159,226.53/470,608.38
  6. Step 6: Final answer
    x = 352,934.98

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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.