Home / 611,819.49-844,334.72-418,632.23

Finding the Fourth Proportional to 611,819.49, 844,334.72 and 418,632.23

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Solution

The fourth proportional to 611,819.49, 844,334.72 and 418,632.23 is: 577,728.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,819.49 : 844,334.72 = 418,632.23 : x
  2. Step 2: Convert to fraction form
    611,819.49/844,334.72 = 418,632.23/x
  3. Step 3: Cross multiply
    611,819.49x = 844,334.72 × 418,632.23
  4. Step 4: Simplify right side
    611,819.49x = 353,465,728,287.57
  5. Step 5: Solve for x
    x = 353,465,728,287.57/611,819.49
  6. Step 6: Final answer
    x = 577,728.78

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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.