Home / 828,789.18-1,143,621.63-466,200.78

Finding the Fourth Proportional to 828,789.18, 1,143,621.63 and 466,200.78

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Solution

The fourth proportional to 828,789.18, 1,143,621.63 and 466,200.78 is: 643,296.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,789.18 : 1,143,621.63 = 466,200.78 : x
  2. Step 2: Convert to fraction form
    828,789.18/1,143,621.63 = 466,200.78/x
  3. Step 3: Cross multiply
    828,789.18x = 1,143,621.63 × 466,200.78
  4. Step 4: Simplify right side
    828,789.18x = 533,157,295,930.87
  5. Step 5: Solve for x
    x = 533,157,295,930.87/828,789.18
  6. Step 6: Final answer
    x = 643,296.64

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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.