Home / 961,168.72-1,440,883.68-455,415.52

Finding the Fourth Proportional to 961,168.72, 1,440,883.68 and 455,415.52

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Solution

The fourth proportional to 961,168.72, 1,440,883.68 and 455,415.52 is: 682,711.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,168.72 : 1,440,883.68 = 455,415.52 : x
  2. Step 2: Convert to fraction form
    961,168.72/1,440,883.68 = 455,415.52/x
  3. Step 3: Cross multiply
    961,168.72x = 1,440,883.68 × 455,415.52
  4. Step 4: Simplify right side
    961,168.72x = 656,200,790,386.71
  5. Step 5: Solve for x
    x = 656,200,790,386.71/961,168.72
  6. Step 6: Final answer
    x = 682,711.35

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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.