Home / 412,070.19-618,121.73-127,790.26

Finding the Fourth Proportional to 412,070.19, 618,121.73 and 127,790.26

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Solution

The fourth proportional to 412,070.19, 618,121.73 and 127,790.26 is: 191,690.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,070.19 : 618,121.73 = 127,790.26 : x
  2. Step 2: Convert to fraction form
    412,070.19/618,121.73 = 127,790.26/x
  3. Step 3: Cross multiply
    412,070.19x = 618,121.73 × 127,790.26
  4. Step 4: Simplify right side
    412,070.19x = 78,989,935,362.52
  5. Step 5: Solve for x
    x = 78,989,935,362.52/412,070.19
  6. Step 6: Final answer
    x = 191,690.49

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.