Home / 608,577.44-839,554.08-393,786.78

Finding the Fourth Proportional to 608,577.44, 839,554.08 and 393,786.78

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Solution

The fourth proportional to 608,577.44, 839,554.08 and 393,786.78 is: 543,242.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,577.44 : 839,554.08 = 393,786.78 : x
  2. Step 2: Convert to fraction form
    608,577.44/839,554.08 = 393,786.78/x
  3. Step 3: Cross multiply
    608,577.44x = 839,554.08 × 393,786.78
  4. Step 4: Simplify right side
    608,577.44x = 330,605,297,799.06
  5. Step 5: Solve for x
    x = 330,605,297,799.06/608,577.44
  6. Step 6: Final answer
    x = 543,242.78

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Double scale
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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.