Home / 718,192.03-991,111.91-395,913.66

Finding the Fourth Proportional to 718,192.03, 991,111.91 and 395,913.66

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Solution

The fourth proportional to 718,192.03, 991,111.91 and 395,913.66 is: 546,364.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,192.03 : 991,111.91 = 395,913.66 : x
  2. Step 2: Convert to fraction form
    718,192.03/991,111.91 = 395,913.66/x
  3. Step 3: Cross multiply
    718,192.03x = 991,111.91 × 395,913.66
  4. Step 4: Simplify right side
    718,192.03x = 392,394,743,757.69
  5. Step 5: Solve for x
    x = 392,394,743,757.69/718,192.03
  6. Step 6: Final answer
    x = 546,364.66

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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.