Home / 837,168.21-1,155,284.10-455,195.07

Finding the Fourth Proportional to 837,168.21, 1,155,284.10 and 455,195.07

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Solution

The fourth proportional to 837,168.21, 1,155,284.10 and 455,195.07 is: 628,164.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,168.21 : 1,155,284.10 = 455,195.07 : x
  2. Step 2: Convert to fraction form
    837,168.21/1,155,284.10 = 455,195.07/x
  3. Step 3: Cross multiply
    837,168.21x = 1,155,284.10 × 455,195.07
  4. Step 4: Simplify right side
    837,168.21x = 525,879,626,769.39
  5. Step 5: Solve for x
    x = 525,879,626,769.39/837,168.21
  6. Step 6: Final answer
    x = 628,164.83

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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.