Home / 939,360.78-1,409,126.85-265,451.82

Finding the Fourth Proportional to 939,360.78, 1,409,126.85 and 265,451.82

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Solution

The fourth proportional to 939,360.78, 1,409,126.85 and 265,451.82 is: 398,201.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,360.78 : 1,409,126.85 = 265,451.82 : x
  2. Step 2: Convert to fraction form
    939,360.78/1,409,126.85 = 265,451.82/x
  3. Step 3: Cross multiply
    939,360.78x = 1,409,126.85 × 265,451.82
  4. Step 4: Simplify right side
    939,360.78x = 374,055,286,943.37
  5. Step 5: Solve for x
    x = 374,055,286,943.37/939,360.78
  6. Step 6: Final answer
    x = 398,201.94

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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.