Home / 657,361.81-986,078.59-208,049.15

Finding the Fourth Proportional to 657,361.81, 986,078.59 and 208,049.15

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Solution

The fourth proportional to 657,361.81, 986,078.59 and 208,049.15 is: 312,085.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,361.81 : 986,078.59 = 208,049.15 : x
  2. Step 2: Convert to fraction form
    657,361.81/986,078.59 = 208,049.15/x
  3. Step 3: Cross multiply
    657,361.81x = 986,078.59 × 208,049.15
  4. Step 4: Simplify right side
    657,361.81x = 205,152,806,512.06
  5. Step 5: Solve for x
    x = 205,152,806,512.06/657,361.81
  6. Step 6: Final answer
    x = 312,085.07

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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.