Home / 657,288.40-986,321.40-236,509.60

Finding the Fourth Proportional to 657,288.40, 986,321.40 and 236,509.60

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Solution

The fourth proportional to 657,288.40, 986,321.40 and 236,509.60 is: 354,904.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,288.40 : 986,321.40 = 236,509.60 : x
  2. Step 2: Convert to fraction form
    657,288.40/986,321.40 = 236,509.60/x
  3. Step 3: Cross multiply
    657,288.40x = 986,321.40 × 236,509.60
  4. Step 4: Simplify right side
    657,288.40x = 233,274,479,785.44
  5. Step 5: Solve for x
    x = 233,274,479,785.44/657,288.40
  6. Step 6: Final answer
    x = 354,904.30

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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.