Home / 865,013.56-1,297,555.68-296,785.40

Finding the Fourth Proportional to 865,013.56, 1,297,555.68 and 296,785.40

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Solution

The fourth proportional to 865,013.56, 1,297,555.68 and 296,785.40 is: 445,190.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,013.56 : 1,297,555.68 = 296,785.40 : x
  2. Step 2: Convert to fraction form
    865,013.56/1,297,555.68 = 296,785.40/x
  3. Step 3: Cross multiply
    865,013.56x = 1,297,555.68 × 296,785.40
  4. Step 4: Simplify right side
    865,013.56x = 385,095,581,511.07
  5. Step 5: Solve for x
    x = 385,095,581,511.07/865,013.56
  6. Step 6: Final answer
    x = 445,190.23

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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.