Home / 432,023.22-647,977.91-128,410.89

Finding the Fourth Proportional to 432,023.22, 647,977.91 and 128,410.89

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Solution

The fourth proportional to 432,023.22, 647,977.91 and 128,410.89 is: 192,599.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,023.22 : 647,977.91 = 128,410.89 : x
  2. Step 2: Convert to fraction form
    432,023.22/647,977.91 = 128,410.89/x
  3. Step 3: Cross multiply
    432,023.22x = 647,977.91 × 128,410.89
  4. Step 4: Simplify right side
    432,023.22x = 83,207,423,241.09
  5. Step 5: Solve for x
    x = 83,207,423,241.09/432,023.22
  6. Step 6: Final answer
    x = 192,599.42

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1.5x scale

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.