Home / 1,085,636.80-1,630,010.40-613,244.80

Finding the Fourth Proportional to 1,085,636.80, 1,630,010.40 and 613,244.80

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Solution

The fourth proportional to 1,085,636.80, 1,630,010.40 and 613,244.80 is: 920,745.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,636.80 : 1,630,010.40 = 613,244.80 : x
  2. Step 2: Convert to fraction form
    1,085,636.80/1,630,010.40 = 613,244.80/x
  3. Step 3: Cross multiply
    1,085,636.80x = 1,630,010.40 × 613,244.80
  4. Step 4: Simplify right side
    1,085,636.80x = 999,595,401,745.92
  5. Step 5: Solve for x
    x = 999,595,401,745.92/1,085,636.80
  6. Step 6: Final answer
    x = 920,745.69

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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.