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Finding the Fourth Proportional to 308,557.98, 425,048.88 and 263,087.82

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Solution

The fourth proportional to 308,557.98, 425,048.88 and 263,087.82 is: 362,412.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,557.98 : 425,048.88 = 263,087.82 : x
  2. Step 2: Convert to fraction form
    308,557.98/425,048.88 = 263,087.82/x
  3. Step 3: Cross multiply
    308,557.98x = 425,048.88 × 263,087.82
  4. Step 4: Simplify right side
    308,557.98x = 111,825,183,232.64
  5. Step 5: Solve for x
    x = 111,825,183,232.64/308,557.98
  6. Step 6: Final answer
    x = 362,412.22

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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.