Home / 628,680.11-938,455.90-581,844.29

Finding the Fourth Proportional to 628,680.11, 938,455.90 and 581,844.29

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Solution

The fourth proportional to 628,680.11, 938,455.90 and 581,844.29 is: 868,542.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,680.11 : 938,455.90 = 581,844.29 : x
  2. Step 2: Convert to fraction form
    628,680.11/938,455.90 = 581,844.29/x
  3. Step 3: Cross multiply
    628,680.11x = 938,455.90 × 581,844.29
  4. Step 4: Simplify right side
    628,680.11x = 546,035,200,684.92
  5. Step 5: Solve for x
    x = 546,035,200,684.92/628,680.11
  6. Step 6: Final answer
    x = 868,542.20

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.