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Finding the Fourth Proportional to 505,237.62, 697,227.81 and 278,883.06

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Solution

The fourth proportional to 505,237.62, 697,227.81 and 278,883.06 is: 384,858.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,237.62 : 697,227.81 = 278,883.06 : x
  2. Step 2: Convert to fraction form
    505,237.62/697,227.81 = 278,883.06/x
  3. Step 3: Cross multiply
    505,237.62x = 697,227.81 × 278,883.06
  4. Step 4: Simplify right side
    505,237.62x = 194,445,025,169.90
  5. Step 5: Solve for x
    x = 194,445,025,169.90/505,237.62
  6. Step 6: Final answer
    x = 384,858.56

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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.