Home / 429,325.28-644,032.02-113,782.22

Finding the Fourth Proportional to 429,325.28, 644,032.02 and 113,782.22

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Solution

The fourth proportional to 429,325.28, 644,032.02 and 113,782.22 is: 170,685.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,325.28 : 644,032.02 = 113,782.22 : x
  2. Step 2: Convert to fraction form
    429,325.28/644,032.02 = 113,782.22/x
  3. Step 3: Cross multiply
    429,325.28x = 644,032.02 × 113,782.22
  4. Step 4: Simplify right side
    429,325.28x = 73,279,392,986.68
  5. Step 5: Solve for x
    x = 73,279,392,986.68/429,325.28
  6. Step 6: Final answer
    x = 170,685.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.