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Finding the Fourth Proportional to 470,672.35, 649,527.96 and 255,812.47

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Solution

The fourth proportional to 470,672.35, 649,527.96 and 255,812.47 is: 353,021.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,672.35 : 649,527.96 = 255,812.47 : x
  2. Step 2: Convert to fraction form
    470,672.35/649,527.96 = 255,812.47/x
  3. Step 3: Cross multiply
    470,672.35x = 649,527.96 × 255,812.47
  4. Step 4: Simplify right side
    470,672.35x = 166,157,351,781.66
  5. Step 5: Solve for x
    x = 166,157,351,781.66/470,672.35
  6. Step 6: Final answer
    x = 353,021.27

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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.