Home / 389,622.85-537,588.17-236,656.78

Finding the Fourth Proportional to 389,622.85, 537,588.17 and 236,656.78

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Solution

The fourth proportional to 389,622.85, 537,588.17 and 236,656.78 is: 326,530.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,622.85 : 537,588.17 = 236,656.78 : x
  2. Step 2: Convert to fraction form
    389,622.85/537,588.17 = 236,656.78/x
  3. Step 3: Cross multiply
    389,622.85x = 537,588.17 × 236,656.78
  4. Step 4: Simplify right side
    389,622.85x = 127,223,883,638.50
  5. Step 5: Solve for x
    x = 127,223,883,638.50/389,622.85
  6. Step 6: Final answer
    x = 326,530.86

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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.