Home / 915,989.01-1,264,040.44-528,791.37

Finding the Fourth Proportional to 915,989.01, 1,264,040.44 and 528,791.37

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Solution

The fourth proportional to 915,989.01, 1,264,040.44 and 528,791.37 is: 729,718.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,989.01 : 1,264,040.44 = 528,791.37 : x
  2. Step 2: Convert to fraction form
    915,989.01/1,264,040.44 = 528,791.37/x
  3. Step 3: Cross multiply
    915,989.01x = 1,264,040.44 × 528,791.37
  4. Step 4: Simplify right side
    915,989.01x = 668,413,676,003.00
  5. Step 5: Solve for x
    x = 668,413,676,003.00/915,989.01
  6. Step 6: Final answer
    x = 729,718.01

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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.