Home / 767,163.54-1,058,191.65-509,034.90

Finding the Fourth Proportional to 767,163.54, 1,058,191.65 and 509,034.90

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Solution

The fourth proportional to 767,163.54, 1,058,191.65 and 509,034.90 is: 702,140.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,163.54 : 1,058,191.65 = 509,034.90 : x
  2. Step 2: Convert to fraction form
    767,163.54/1,058,191.65 = 509,034.90/x
  3. Step 3: Cross multiply
    767,163.54x = 1,058,191.65 × 509,034.90
  4. Step 4: Simplify right side
    767,163.54x = 538,656,480,738.59
  5. Step 5: Solve for x
    x = 538,656,480,738.59/767,163.54
  6. Step 6: Final answer
    x = 702,140.36

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Double scale
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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.