Home / 628,453.36-942,827.64-207,729.20

Finding the Fourth Proportional to 628,453.36, 942,827.64 and 207,729.20

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Solution

The fourth proportional to 628,453.36, 942,827.64 and 207,729.20 is: 311,642.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,453.36 : 942,827.64 = 207,729.20 : x
  2. Step 2: Convert to fraction form
    628,453.36/942,827.64 = 207,729.20/x
  3. Step 3: Cross multiply
    628,453.36x = 942,827.64 × 207,729.20
  4. Step 4: Simplify right side
    628,453.36x = 195,852,831,395.09
  5. Step 5: Solve for x
    x = 195,852,831,395.09/628,453.36
  6. Step 6: Final answer
    x = 311,642.59

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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.