Home / 628,814.10-943,221.15-208,035.30

Finding the Fourth Proportional to 628,814.10, 943,221.15 and 208,035.30

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Solution

The fourth proportional to 628,814.10, 943,221.15 and 208,035.30 is: 312,052.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,814.10 : 943,221.15 = 208,035.30 : x
  2. Step 2: Convert to fraction form
    628,814.10/943,221.15 = 208,035.30/x
  3. Step 3: Cross multiply
    628,814.10x = 943,221.15 × 208,035.30
  4. Step 4: Simplify right side
    628,814.10x = 196,223,294,906.60
  5. Step 5: Solve for x
    x = 196,223,294,906.60/628,814.10
  6. Step 6: Final answer
    x = 312,052.95

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Similar ratio
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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.