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Finding the Fourth Proportional to 345,332.46, 476,540.31 and 190,278.94

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Solution

The fourth proportional to 345,332.46, 476,540.31 and 190,278.94 is: 262,574.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,332.46 : 476,540.31 = 190,278.94 : x
  2. Step 2: Convert to fraction form
    345,332.46/476,540.31 = 190,278.94/x
  3. Step 3: Cross multiply
    345,332.46x = 476,540.31 × 190,278.94
  4. Step 4: Simplify right side
    345,332.46x = 90,675,585,054.07
  5. Step 5: Solve for x
    x = 90,675,585,054.07/345,332.46
  6. Step 6: Final answer
    x = 262,574.75

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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.