Home / 626,325.45-864,317.79-381,221.43

Finding the Fourth Proportional to 626,325.45, 864,317.79 and 381,221.43

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Solution

The fourth proportional to 626,325.45, 864,317.79 and 381,221.43 is: 526,078.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,325.45 : 864,317.79 = 381,221.43 : x
  2. Step 2: Convert to fraction form
    626,325.45/864,317.79 = 381,221.43/x
  3. Step 3: Cross multiply
    626,325.45x = 864,317.79 × 381,221.43
  4. Step 4: Simplify right side
    626,325.45x = 329,496,463,878.24
  5. Step 5: Solve for x
    x = 329,496,463,878.24/626,325.45
  6. Step 6: Final answer
    x = 526,078.68

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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.