Home / 657,111.36-985,788.70-207,945.30

Finding the Fourth Proportional to 657,111.36, 985,788.70 and 207,945.30

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Solution

The fourth proportional to 657,111.36, 985,788.70 and 207,945.30 is: 311,956.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,111.36 : 985,788.70 = 207,945.30 : x
  2. Step 2: Convert to fraction form
    657,111.36/985,788.70 = 207,945.30/x
  3. Step 3: Cross multiply
    657,111.36x = 985,788.70 × 207,945.30
  4. Step 4: Simplify right side
    657,111.36x = 204,990,126,958.11
  5. Step 5: Solve for x
    x = 204,990,126,958.11/657,111.36
  6. Step 6: Final answer
    x = 311,956.45

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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.