Home / 828,766.62-1,143,799.11-466,205.76

Finding the Fourth Proportional to 828,766.62, 1,143,799.11 and 466,205.76

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Solution

The fourth proportional to 828,766.62, 1,143,799.11 and 466,205.76 is: 643,420.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,766.62 : 1,143,799.11 = 466,205.76 : x
  2. Step 2: Convert to fraction form
    828,766.62/1,143,799.11 = 466,205.76/x
  3. Step 3: Cross multiply
    828,766.62x = 1,143,799.11 × 466,205.76
  4. Step 4: Simplify right side
    828,766.62x = 533,245,733,364.87
  5. Step 5: Solve for x
    x = 533,245,733,364.87/828,766.62
  6. Step 6: Final answer
    x = 643,420.86

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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.