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Finding the Fourth Proportional to 826,626.70, 1,239,940.05 and 616,674.70

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Solution

The fourth proportional to 826,626.70, 1,239,940.05 and 616,674.70 is: 925,012.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,626.70 : 1,239,940.05 = 616,674.70 : x
  2. Step 2: Convert to fraction form
    826,626.70/1,239,940.05 = 616,674.70/x
  3. Step 3: Cross multiply
    826,626.70x = 1,239,940.05 × 616,674.70
  4. Step 4: Simplify right side
    826,626.70x = 764,639,658,351.74
  5. Step 5: Solve for x
    x = 764,639,658,351.74/826,626.70
  6. Step 6: Final answer
    x = 925,012.05

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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.