Home / 640,824.21-961,331.89-235,985.29

Finding the Fourth Proportional to 640,824.21, 961,331.89 and 235,985.29

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Solution

The fourth proportional to 640,824.21, 961,331.89 and 235,985.29 is: 354,013.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,824.21 : 961,331.89 = 235,985.29 : x
  2. Step 2: Convert to fraction form
    640,824.21/961,331.89 = 235,985.29/x
  3. Step 3: Cross multiply
    640,824.21x = 961,331.89 × 235,985.29
  4. Step 4: Simplify right side
    640,824.21x = 226,860,178,861.31
  5. Step 5: Solve for x
    x = 226,860,178,861.31/640,824.21
  6. Step 6: Final answer
    x = 354,013.12

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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.