Home / 657,888.57-986,868.09-208,643.58

Finding the Fourth Proportional to 657,888.57, 986,868.09 and 208,643.58

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Solution

The fourth proportional to 657,888.57, 986,868.09 and 208,643.58 is: 312,976.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,888.57 : 986,868.09 = 208,643.58 : x
  2. Step 2: Convert to fraction form
    657,888.57/986,868.09 = 208,643.58/x
  3. Step 3: Cross multiply
    657,888.57x = 986,868.09 × 208,643.58
  4. Step 4: Simplify right side
    657,888.57x = 205,903,691,285.36
  5. Step 5: Solve for x
    x = 205,903,691,285.36/657,888.57
  6. Step 6: Final answer
    x = 312,976.54

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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.