Home / 853,890.20-1,280,813.24-277,510.25

Finding the Fourth Proportional to 853,890.20, 1,280,813.24 and 277,510.25

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Solution

The fourth proportional to 853,890.20, 1,280,813.24 and 277,510.25 is: 416,258.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,890.20 : 1,280,813.24 = 277,510.25 : x
  2. Step 2: Convert to fraction form
    853,890.20/1,280,813.24 = 277,510.25/x
  3. Step 3: Cross multiply
    853,890.20x = 1,280,813.24 × 277,510.25
  4. Step 4: Simplify right side
    853,890.20x = 355,438,801,048.16
  5. Step 5: Solve for x
    x = 355,438,801,048.16/853,890.20
  6. Step 6: Final answer
    x = 416,258.21

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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.