Home / 890,069.11-1,335,185.75-291,033.34

Finding the Fourth Proportional to 890,069.11, 1,335,185.75 and 291,033.34

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Solution

The fourth proportional to 890,069.11, 1,335,185.75 and 291,033.34 is: 436,576.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,069.11 : 1,335,185.75 = 291,033.34 : x
  2. Step 2: Convert to fraction form
    890,069.11/1,335,185.75 = 291,033.34/x
  3. Step 3: Cross multiply
    890,069.11x = 1,335,185.75 × 291,033.34
  4. Step 4: Simplify right side
    890,069.11x = 388,583,568,342.91
  5. Step 5: Solve for x
    x = 388,583,568,342.91/890,069.11
  6. Step 6: Final answer
    x = 436,576.85

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.