Home / 656,944.80-985,676.40-257,517.60

Finding the Fourth Proportional to 656,944.80, 985,676.40 and 257,517.60

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Solution

The fourth proportional to 656,944.80, 985,676.40 and 257,517.60 is: 386,378.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,944.80 : 985,676.40 = 257,517.60 : x
  2. Step 2: Convert to fraction form
    656,944.80/985,676.40 = 257,517.60/x
  3. Step 3: Cross multiply
    656,944.80x = 985,676.40 × 257,517.60
  4. Step 4: Simplify right side
    656,944.80x = 253,829,020,904.64
  5. Step 5: Solve for x
    x = 253,829,020,904.64/656,944.80
  6. Step 6: Final answer
    x = 386,378.00

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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.