Home / 992,777.76-1,370,509.20-611,131.68

Finding the Fourth Proportional to 992,777.76, 1,370,509.20 and 611,131.68

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Solution

The fourth proportional to 992,777.76, 1,370,509.20 and 611,131.68 is: 843,654.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,777.76 : 1,370,509.20 = 611,131.68 : x
  2. Step 2: Convert to fraction form
    992,777.76/1,370,509.20 = 611,131.68/x
  3. Step 3: Cross multiply
    992,777.76x = 1,370,509.20 × 611,131.68
  4. Step 4: Simplify right side
    992,777.76x = 837,561,589,851.46
  5. Step 5: Solve for x
    x = 837,561,589,851.46/992,777.76
  6. Step 6: Final answer
    x = 843,654.67

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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.