Home / 463,923.11-640,181.54-257,189.45

Finding the Fourth Proportional to 463,923.11, 640,181.54 and 257,189.45

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Solution

The fourth proportional to 463,923.11, 640,181.54 and 257,189.45 is: 354,903.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,923.11 : 640,181.54 = 257,189.45 : x
  2. Step 2: Convert to fraction form
    463,923.11/640,181.54 = 257,189.45/x
  3. Step 3: Cross multiply
    463,923.11x = 640,181.54 × 257,189.45
  4. Step 4: Simplify right side
    463,923.11x = 164,647,938,172.75
  5. Step 5: Solve for x
    x = 164,647,938,172.75/463,923.11
  6. Step 6: Final answer
    x = 354,903.51

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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.