Home / 1,121,750.40-1,682,625.60-411,542.40

Finding the Fourth Proportional to 1,121,750.40, 1,682,625.60 and 411,542.40

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Solution

The fourth proportional to 1,121,750.40, 1,682,625.60 and 411,542.40 is: 617,313.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,750.40 : 1,682,625.60 = 411,542.40 : x
  2. Step 2: Convert to fraction form
    1,121,750.40/1,682,625.60 = 411,542.40/x
  3. Step 3: Cross multiply
    1,121,750.40x = 1,682,625.60 × 411,542.40
  4. Step 4: Simplify right side
    1,121,750.40x = 692,471,777,725.44
  5. Step 5: Solve for x
    x = 692,471,777,725.44/1,121,750.40
  6. Step 6: Final answer
    x = 617,313.60

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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.