Home / 885,683.80-1,328,720.10-436,619.80

Finding the Fourth Proportional to 885,683.80, 1,328,720.10 and 436,619.80

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Solution

The fourth proportional to 885,683.80, 1,328,720.10 and 436,619.80 is: 655,025.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,683.80 : 1,328,720.10 = 436,619.80 : x
  2. Step 2: Convert to fraction form
    885,683.80/1,328,720.10 = 436,619.80/x
  3. Step 3: Cross multiply
    885,683.80x = 1,328,720.10 × 436,619.80
  4. Step 4: Simplify right side
    885,683.80x = 580,145,504,317.98
  5. Step 5: Solve for x
    x = 580,145,504,317.98/885,683.80
  6. Step 6: Final answer
    x = 655,025.53

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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.