Home / 885,693.80-1,328,735.10-436,629.80

Finding the Fourth Proportional to 885,693.80, 1,328,735.10 and 436,629.80

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Solution

The fourth proportional to 885,693.80, 1,328,735.10 and 436,629.80 is: 655,040.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,693.80 : 1,328,735.10 = 436,629.80 : x
  2. Step 2: Convert to fraction form
    885,693.80/1,328,735.10 = 436,629.80/x
  3. Step 3: Cross multiply
    885,693.80x = 1,328,735.10 × 436,629.80
  4. Step 4: Simplify right side
    885,693.80x = 580,165,340,965.98
  5. Step 5: Solve for x
    x = 580,165,340,965.98/885,693.80
  6. Step 6: Final answer
    x = 655,040.54

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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.