Home / 863,778.73-1,293,933.41-430,190.03

Finding the Fourth Proportional to 863,778.73, 1,293,933.41 and 430,190.03

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Solution

The fourth proportional to 863,778.73, 1,293,933.41 and 430,190.03 is: 644,421.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,778.73 : 1,293,933.41 = 430,190.03 : x
  2. Step 2: Convert to fraction form
    863,778.73/1,293,933.41 = 430,190.03/x
  3. Step 3: Cross multiply
    863,778.73x = 1,293,933.41 × 430,190.03
  4. Step 4: Simplify right side
    863,778.73x = 556,637,250,314.95
  5. Step 5: Solve for x
    x = 556,637,250,314.95/863,778.73
  6. Step 6: Final answer
    x = 644,421.12

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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.