Home / 864,126.36-1,192,161.78-541,274.40

Finding the Fourth Proportional to 864,126.36, 1,192,161.78 and 541,274.40

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Solution

The fourth proportional to 864,126.36, 1,192,161.78 and 541,274.40 is: 746,750.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,126.36 : 1,192,161.78 = 541,274.40 : x
  2. Step 2: Convert to fraction form
    864,126.36/1,192,161.78 = 541,274.40/x
  3. Step 3: Cross multiply
    864,126.36x = 1,192,161.78 × 541,274.40
  4. Step 4: Simplify right side
    864,126.36x = 645,286,652,172.43
  5. Step 5: Solve for x
    x = 645,286,652,172.43/864,126.36
  6. Step 6: Final answer
    x = 746,750.34

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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.