Home / 381,845.28-526,931.84-212,090.24

Finding the Fourth Proportional to 381,845.28, 526,931.84 and 212,090.24

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Solution

The fourth proportional to 381,845.28, 526,931.84 and 212,090.24 is: 292,676.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,845.28 : 526,931.84 = 212,090.24 : x
  2. Step 2: Convert to fraction form
    381,845.28/526,931.84 = 212,090.24/x
  3. Step 3: Cross multiply
    381,845.28x = 526,931.84 × 212,090.24
  4. Step 4: Simplify right side
    381,845.28x = 111,757,100,409.24
  5. Step 5: Solve for x
    x = 111,757,100,409.24/381,845.28
  6. Step 6: Final answer
    x = 292,676.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.