Home / 657,921.20-986,917.05-208,676.16

Finding the Fourth Proportional to 657,921.20, 986,917.05 and 208,676.16

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Solution

The fourth proportional to 657,921.20, 986,917.05 and 208,676.16 is: 313,025.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,921.20 : 986,917.05 = 208,676.16 : x
  2. Step 2: Convert to fraction form
    657,921.20/986,917.05 = 208,676.16/x
  3. Step 3: Cross multiply
    657,921.20x = 986,917.05 × 208,676.16
  4. Step 4: Simplify right side
    657,921.20x = 205,946,060,232.53
  5. Step 5: Solve for x
    x = 205,946,060,232.53/657,921.20
  6. Step 6: Final answer
    x = 313,025.42

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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.