Home / 889,984.80-1,334,847.60-258,832.80

Finding the Fourth Proportional to 889,984.80, 1,334,847.60 and 258,832.80

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Solution

The fourth proportional to 889,984.80, 1,334,847.60 and 258,832.80 is: 388,211.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,984.80 : 1,334,847.60 = 258,832.80 : x
  2. Step 2: Convert to fraction form
    889,984.80/1,334,847.60 = 258,832.80/x
  3. Step 3: Cross multiply
    889,984.80x = 1,334,847.60 × 258,832.80
  4. Step 4: Simplify right side
    889,984.80x = 345,502,341,881.28
  5. Step 5: Solve for x
    x = 345,502,341,881.28/889,984.80
  6. Step 6: Final answer
    x = 388,211.51

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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.