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Finding the Fourth Proportional to 470,618.52, 649,459.72 and 255,761.98

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Solution

The fourth proportional to 470,618.52, 649,459.72 and 255,761.98 is: 352,954.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,618.52 : 649,459.72 = 255,761.98 : x
  2. Step 2: Convert to fraction form
    470,618.52/649,459.72 = 255,761.98/x
  3. Step 3: Cross multiply
    470,618.52x = 649,459.72 × 255,761.98
  4. Step 4: Simplify right side
    470,618.52x = 166,107,103,917.45
  5. Step 5: Solve for x
    x = 166,107,103,917.45/470,618.52
  6. Step 6: Final answer
    x = 352,954.88

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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.