Home / 358,821-495,195.66-197,676.36

Finding the Fourth Proportional to 358,821, 495,195.66 and 197,676.36

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Solution

The fourth proportional to 358,821, 495,195.66 and 197,676.36 is: 272,805.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,821 : 495,195.66 = 197,676.36 : x
  2. Step 2: Convert to fraction form
    358,821/495,195.66 = 197,676.36/x
  3. Step 3: Cross multiply
    358,821x = 495,195.66 × 197,676.36
  4. Step 4: Simplify right side
    358,821x = 97,888,475,556.60
  5. Step 5: Solve for x
    x = 97,888,475,556.60/358,821
  6. Step 6: Final answer
    x = 272,805.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.