Home / 783,910.54-1,080,636.69-611,633.26

Finding the Fourth Proportional to 783,910.54, 1,080,636.69 and 611,633.26

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Solution

The fourth proportional to 783,910.54, 1,080,636.69 and 611,633.26 is: 843,148.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,910.54 : 1,080,636.69 = 611,633.26 : x
  2. Step 2: Convert to fraction form
    783,910.54/1,080,636.69 = 611,633.26/x
  3. Step 3: Cross multiply
    783,910.54x = 1,080,636.69 × 611,633.26
  4. Step 4: Simplify right side
    783,910.54x = 660,953,341,580.31
  5. Step 5: Solve for x
    x = 660,953,341,580.31/783,910.54
  6. Step 6: Final answer
    x = 843,148.94

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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.