Home / 1,086,409.40-1,629,614.10-455,257.40

Finding the Fourth Proportional to 1,086,409.40, 1,629,614.10 and 455,257.40

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Solution

The fourth proportional to 1,086,409.40, 1,629,614.10 and 455,257.40 is: 682,886.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,409.40 : 1,629,614.10 = 455,257.40 : x
  2. Step 2: Convert to fraction form
    1,086,409.40/1,629,614.10 = 455,257.40/x
  3. Step 3: Cross multiply
    1,086,409.40x = 1,629,614.10 × 455,257.40
  4. Step 4: Simplify right side
    1,086,409.40x = 741,893,878,169.34
  5. Step 5: Solve for x
    x = 741,893,878,169.34/1,086,409.40
  6. Step 6: Final answer
    x = 682,886.10

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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.