Home / 657,729.36-986,621.58-208,440.36

Finding the Fourth Proportional to 657,729.36, 986,621.58 and 208,440.36

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Solution

The fourth proportional to 657,729.36, 986,621.58 and 208,440.36 is: 312,669.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,729.36 : 986,621.58 = 208,440.36 : x
  2. Step 2: Convert to fraction form
    657,729.36/986,621.58 = 208,440.36/x
  3. Step 3: Cross multiply
    657,729.36x = 986,621.58 × 208,440.36
  4. Step 4: Simplify right side
    657,729.36x = 205,651,757,318.97
  5. Step 5: Solve for x
    x = 205,651,757,318.97/657,729.36
  6. Step 6: Final answer
    x = 312,669.27

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1.5x scale

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.