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Finding the Fourth Proportional to 355,808.76, 490,868.28 and 233,267.64

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Solution

The fourth proportional to 355,808.76, 490,868.28 and 233,267.64 is: 321,812.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,808.76 : 490,868.28 = 233,267.64 : x
  2. Step 2: Convert to fraction form
    355,808.76/490,868.28 = 233,267.64/x
  3. Step 3: Cross multiply
    355,808.76x = 490,868.28 × 233,267.64
  4. Step 4: Simplify right side
    355,808.76x = 114,503,685,226.46
  5. Step 5: Solve for x
    x = 114,503,685,226.46/355,808.76
  6. Step 6: Final answer
    x = 321,812.44

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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.