Home / 921,610.54-1,382,414.73-256,762.54

Finding the Fourth Proportional to 921,610.54, 1,382,414.73 and 256,762.54

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Solution

The fourth proportional to 921,610.54, 1,382,414.73 and 256,762.54 is: 385,143.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,610.54 : 1,382,414.73 = 256,762.54 : x
  2. Step 2: Convert to fraction form
    921,610.54/1,382,414.73 = 256,762.54/x
  3. Step 3: Cross multiply
    921,610.54x = 1,382,414.73 × 256,762.54
  4. Step 4: Simplify right side
    921,610.54x = 354,952,317,408.21
  5. Step 5: Solve for x
    x = 354,952,317,408.21/921,610.54
  6. Step 6: Final answer
    x = 385,143.51

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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.