Home / 939,630.33-1,296,690.69-509,910.46

Finding the Fourth Proportional to 939,630.33, 1,296,690.69 and 509,910.46

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Solution

The fourth proportional to 939,630.33, 1,296,690.69 and 509,910.46 is: 703,676.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,630.33 : 1,296,690.69 = 509,910.46 : x
  2. Step 2: Convert to fraction form
    939,630.33/1,296,690.69 = 509,910.46/x
  3. Step 3: Cross multiply
    939,630.33x = 1,296,690.69 × 509,910.46
  4. Step 4: Simplify right side
    939,630.33x = 661,196,146,215.62
  5. Step 5: Solve for x
    x = 661,196,146,215.62/939,630.33
  6. Step 6: Final answer
    x = 703,676.89

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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.