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Finding the Fourth Proportional to 470,630.58, 649,474.28 and 255,770.69

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Solution

The fourth proportional to 470,630.58, 649,474.28 and 255,770.69 is: 352,965.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,630.58 : 649,474.28 = 255,770.69 : x
  2. Step 2: Convert to fraction form
    470,630.58/649,474.28 = 255,770.69/x
  3. Step 3: Cross multiply
    470,630.58x = 649,474.28 × 255,770.69
  4. Step 4: Simplify right side
    470,630.58x = 166,116,483,454.00
  5. Step 5: Solve for x
    x = 166,116,483,454.00/470,630.58
  6. Step 6: Final answer
    x = 352,965.77

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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.