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Finding the Fourth Proportional to 662,357.19, 914,074.97 and 372,019.84

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Solution

The fourth proportional to 662,357.19, 914,074.97 and 372,019.84 is: 513,399.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,357.19 : 914,074.97 = 372,019.84 : x
  2. Step 2: Convert to fraction form
    662,357.19/914,074.97 = 372,019.84/x
  3. Step 3: Cross multiply
    662,357.19x = 914,074.97 × 372,019.84
  4. Step 4: Simplify right side
    662,357.19x = 340,054,022,034.73
  5. Step 5: Solve for x
    x = 340,054,022,034.73/662,357.19
  6. Step 6: Final answer
    x = 513,399.76

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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.