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Finding the Fourth Proportional to 417,355.07, 626,131.29 and 332,287.59

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Solution

The fourth proportional to 417,355.07, 626,131.29 and 332,287.59 is: 498,509.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,355.07 : 626,131.29 = 332,287.59 : x
  2. Step 2: Convert to fraction form
    417,355.07/626,131.29 = 332,287.59/x
  3. Step 3: Cross multiply
    417,355.07x = 626,131.29 × 332,287.59
  4. Step 4: Simplify right side
    417,355.07x = 208,055,655,716.25
  5. Step 5: Solve for x
    x = 208,055,655,716.25/417,355.07
  6. Step 6: Final answer
    x = 498,509.95

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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.