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Finding the Fourth Proportional to 462,480.99, 693,891.59 and 330,400.77

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Solution

The fourth proportional to 462,480.99, 693,891.59 and 330,400.77 is: 495,722.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,480.99 : 693,891.59 = 330,400.77 : x
  2. Step 2: Convert to fraction form
    462,480.99/693,891.59 = 330,400.77/x
  3. Step 3: Cross multiply
    462,480.99x = 693,891.59 × 330,400.77
  4. Step 4: Simplify right side
    462,480.99x = 229,262,313,980.52
  5. Step 5: Solve for x
    x = 229,262,313,980.52/462,480.99
  6. Step 6: Final answer
    x = 495,722.68

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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.