Home / 313,566.80-432,556.32-198,642.72

Finding the Fourth Proportional to 313,566.80, 432,556.32 and 198,642.72

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Solution

The fourth proportional to 313,566.80, 432,556.32 and 198,642.72 is: 274,021.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,566.80 : 432,556.32 = 198,642.72 : x
  2. Step 2: Convert to fraction form
    313,566.80/432,556.32 = 198,642.72/x
  3. Step 3: Cross multiply
    313,566.80x = 432,556.32 × 198,642.72
  4. Step 4: Simplify right side
    313,566.80x = 85,924,163,957.99
  5. Step 5: Solve for x
    x = 85,924,163,957.99/313,566.80
  6. Step 6: Final answer
    x = 274,021.88

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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.