Home / 657,073.08-985,985.46-257,749.56

Finding the Fourth Proportional to 657,073.08, 985,985.46 and 257,749.56

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Solution

The fourth proportional to 657,073.08, 985,985.46 and 257,749.56 is: 386,771.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,073.08 : 985,985.46 = 257,749.56 : x
  2. Step 2: Convert to fraction form
    657,073.08/985,985.46 = 257,749.56/x
  3. Step 3: Cross multiply
    657,073.08x = 985,985.46 × 257,749.56
  4. Step 4: Simplify right side
    657,073.08x = 254,137,318,481.40
  5. Step 5: Solve for x
    x = 254,137,318,481.40/657,073.08
  6. Step 6: Final answer
    x = 386,771.77

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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.