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Finding the Fourth Proportional to 471,007.40, 705,474.30 and 330,002.60

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Solution

The fourth proportional to 471,007.40, 705,474.30 and 330,002.60 is: 494,277.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,007.40 : 705,474.30 = 330,002.60 : x
  2. Step 2: Convert to fraction form
    471,007.40/705,474.30 = 330,002.60/x
  3. Step 3: Cross multiply
    471,007.40x = 705,474.30 × 330,002.60
  4. Step 4: Simplify right side
    471,007.40x = 232,808,353,233.18
  5. Step 5: Solve for x
    x = 232,808,353,233.18/471,007.40
  6. Step 6: Final answer
    x = 494,277.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.