Home / 783,383.78-1,081,058.72-434,513.54

Finding the Fourth Proportional to 783,383.78, 1,081,058.72 and 434,513.54

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Solution

The fourth proportional to 783,383.78, 1,081,058.72 and 434,513.54 is: 599,622.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,383.78 : 1,081,058.72 = 434,513.54 : x
  2. Step 2: Convert to fraction form
    783,383.78/1,081,058.72 = 434,513.54/x
  3. Step 3: Cross multiply
    783,383.78x = 1,081,058.72 × 434,513.54
  4. Step 4: Simplify right side
    783,383.78x = 469,734,651,375.07
  5. Step 5: Solve for x
    x = 469,734,651,375.07/783,383.78
  6. Step 6: Final answer
    x = 599,622.64

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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.