Home / 639,544.45-882,548.19-353,058.40

Finding the Fourth Proportional to 639,544.45, 882,548.19 and 353,058.40

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Solution

The fourth proportional to 639,544.45, 882,548.19 and 353,058.40 is: 487,207.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,544.45 : 882,548.19 = 353,058.40 : x
  2. Step 2: Convert to fraction form
    639,544.45/882,548.19 = 353,058.40/x
  3. Step 3: Cross multiply
    639,544.45x = 882,548.19 × 353,058.40
  4. Step 4: Simplify right side
    639,544.45x = 311,591,051,884.30
  5. Step 5: Solve for x
    x = 311,591,051,884.30/639,544.45
  6. Step 6: Final answer
    x = 487,207.81

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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.