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Finding the Fourth Proportional to 492,274.07, 679,338.82 and 265,919.57

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Solution

The fourth proportional to 492,274.07, 679,338.82 and 265,919.57 is: 366,969.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,274.07 : 679,338.82 = 265,919.57 : x
  2. Step 2: Convert to fraction form
    492,274.07/679,338.82 = 265,919.57/x
  3. Step 3: Cross multiply
    492,274.07x = 679,338.82 × 265,919.57
  4. Step 4: Simplify right side
    492,274.07x = 180,649,482,172.42
  5. Step 5: Solve for x
    x = 180,649,482,172.42/492,274.07
  6. Step 6: Final answer
    x = 366,969.33

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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.