Home / 628,354.40-867,132.90-341,876.60

Finding the Fourth Proportional to 628,354.40, 867,132.90 and 341,876.60

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Solution

The fourth proportional to 628,354.40, 867,132.90 and 341,876.60 is: 471,791.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,354.40 : 867,132.90 = 341,876.60 : x
  2. Step 2: Convert to fraction form
    628,354.40/867,132.90 = 341,876.60/x
  3. Step 3: Cross multiply
    628,354.40x = 867,132.90 × 341,876.60
  4. Step 4: Simplify right side
    628,354.40x = 296,452,447,600.14
  5. Step 5: Solve for x
    x = 296,452,447,600.14/628,354.40
  6. Step 6: Final answer
    x = 471,791.79

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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.