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Finding the Fourth Proportional to 340,483.06, 510,369.81 and 190,503.46

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Solution

The fourth proportional to 340,483.06, 510,369.81 and 190,503.46 is: 285,556.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,483.06 : 510,369.81 = 190,503.46 : x
  2. Step 2: Convert to fraction form
    340,483.06/510,369.81 = 190,503.46/x
  3. Step 3: Cross multiply
    340,483.06x = 510,369.81 × 190,503.46
  4. Step 4: Simplify right side
    340,483.06x = 97,227,214,684.54
  5. Step 5: Solve for x
    x = 97,227,214,684.54/340,483.06
  6. Step 6: Final answer
    x = 285,556.69

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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.