Home / 728,812.20-1,093,218.30-256,031.40

Finding the Fourth Proportional to 728,812.20, 1,093,218.30 and 256,031.40

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Solution

The fourth proportional to 728,812.20, 1,093,218.30 and 256,031.40 is: 384,047.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,812.20 : 1,093,218.30 = 256,031.40 : x
  2. Step 2: Convert to fraction form
    728,812.20/1,093,218.30 = 256,031.40/x
  3. Step 3: Cross multiply
    728,812.20x = 1,093,218.30 × 256,031.40
  4. Step 4: Simplify right side
    728,812.20x = 279,898,211,854.62
  5. Step 5: Solve for x
    x = 279,898,211,854.62/728,812.20
  6. Step 6: Final answer
    x = 384,047.10

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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.