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Finding the Fourth Proportional to 659,202.06, 909,716.76 and 372,765

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Solution

The fourth proportional to 659,202.06, 909,716.76 and 372,765 is: 514,425.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,202.06 : 909,716.76 = 372,765 : x
  2. Step 2: Convert to fraction form
    659,202.06/909,716.76 = 372,765/x
  3. Step 3: Cross multiply
    659,202.06x = 909,716.76 × 372,765
  4. Step 4: Simplify right side
    659,202.06x = 339,110,568,041.40
  5. Step 5: Solve for x
    x = 339,110,568,041.40/659,202.06
  6. Step 6: Final answer
    x = 514,425.83

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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.