Home / 445,918.60-668,980.07-193,241.50

Finding the Fourth Proportional to 445,918.60, 668,980.07 and 193,241.50

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Solution

The fourth proportional to 445,918.60, 668,980.07 and 193,241.50 is: 289,906.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,918.60 : 668,980.07 = 193,241.50 : x
  2. Step 2: Convert to fraction form
    445,918.60/668,980.07 = 193,241.50/x
  3. Step 3: Cross multiply
    445,918.60x = 668,980.07 × 193,241.50
  4. Step 4: Simplify right side
    445,918.60x = 129,274,712,196.91
  5. Step 5: Solve for x
    x = 129,274,712,196.91/445,918.60
  6. Step 6: Final answer
    x = 289,906.53

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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.