Home / 639,622.73-882,360.71-381,317.67

Finding the Fourth Proportional to 639,622.73, 882,360.71 and 381,317.67

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Solution

The fourth proportional to 639,622.73, 882,360.71 and 381,317.67 is: 526,028.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,622.73 : 882,360.71 = 381,317.67 : x
  2. Step 2: Convert to fraction form
    639,622.73/882,360.71 = 381,317.67/x
  3. Step 3: Cross multiply
    639,622.73x = 882,360.71 × 381,317.67
  4. Step 4: Simplify right side
    639,622.73x = 336,459,726,877.55
  5. Step 5: Solve for x
    x = 336,459,726,877.55/639,622.73
  6. Step 6: Final answer
    x = 526,028.41

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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.