Home / 856,539.39-1,284,410.21-383,228.67

Finding the Fourth Proportional to 856,539.39, 1,284,410.21 and 383,228.67

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Solution

The fourth proportional to 856,539.39, 1,284,410.21 and 383,228.67 is: 574,664.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,539.39 : 1,284,410.21 = 383,228.67 : x
  2. Step 2: Convert to fraction form
    856,539.39/1,284,410.21 = 383,228.67/x
  3. Step 3: Cross multiply
    856,539.39x = 1,284,410.21 × 383,228.67
  4. Step 4: Simplify right side
    856,539.39x = 492,222,814,596.58
  5. Step 5: Solve for x
    x = 492,222,814,596.58/856,539.39
  6. Step 6: Final answer
    x = 574,664.54

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Double scale
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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.