Home / 381,826.30-526,977.75-274,750.78

Finding the Fourth Proportional to 381,826.30, 526,977.75 and 274,750.78

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Solution

The fourth proportional to 381,826.30, 526,977.75 and 274,750.78 is: 379,197.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,826.30 : 526,977.75 = 274,750.78 : x
  2. Step 2: Convert to fraction form
    381,826.30/526,977.75 = 274,750.78/x
  3. Step 3: Cross multiply
    381,826.30x = 526,977.75 × 274,750.78
  4. Step 4: Simplify right side
    381,826.30x = 144,787,547,855.15
  5. Step 5: Solve for x
    x = 144,787,547,855.15/381,826.30
  6. Step 6: Final answer
    x = 379,197.42

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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.