Home / 494,977.23-683,078.81-280,117.26

Finding the Fourth Proportional to 494,977.23, 683,078.81 and 280,117.26

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Solution

The fourth proportional to 494,977.23, 683,078.81 and 280,117.26 is: 386,567.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,977.23 : 683,078.81 = 280,117.26 : x
  2. Step 2: Convert to fraction form
    494,977.23/683,078.81 = 280,117.26/x
  3. Step 3: Cross multiply
    494,977.23x = 683,078.81 × 280,117.26
  4. Step 4: Simplify right side
    494,977.23x = 191,342,163,220.67
  5. Step 5: Solve for x
    x = 191,342,163,220.67/494,977.23
  6. Step 6: Final answer
    x = 386,567.61

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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.