Home / 628,443.36-942,812.64-207,719.19

Finding the Fourth Proportional to 628,443.36, 942,812.64 and 207,719.19

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Solution

The fourth proportional to 628,443.36, 942,812.64 and 207,719.19 is: 311,627.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,443.36 : 942,812.64 = 207,719.19 : x
  2. Step 2: Convert to fraction form
    628,443.36/942,812.64 = 207,719.19/x
  3. Step 3: Cross multiply
    628,443.36x = 942,812.64 × 207,719.19
  4. Step 4: Simplify right side
    628,443.36x = 195,840,277,902.56
  5. Step 5: Solve for x
    x = 195,840,277,902.56/628,443.36
  6. Step 6: Final answer
    x = 311,627.57

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Why These Related Problems?

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