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Finding the Fourth Proportional to 492,268.35, 679,344.56 and 277,396.59

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Solution

The fourth proportional to 492,268.35, 679,344.56 and 277,396.59 is: 382,815.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,268.35 : 679,344.56 = 277,396.59 : x
  2. Step 2: Convert to fraction form
    492,268.35/679,344.56 = 277,396.59/x
  3. Step 3: Cross multiply
    492,268.35x = 679,344.56 × 277,396.59
  4. Step 4: Simplify right side
    492,268.35x = 188,447,862,992.07
  5. Step 5: Solve for x
    x = 188,447,862,992.07/492,268.35
  6. Step 6: Final answer
    x = 382,815.31

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1.5x scale

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.