Home / 718,193.03-991,113.29-395,914.66

Finding the Fourth Proportional to 718,193.03, 991,113.29 and 395,914.66

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Solution

The fourth proportional to 718,193.03, 991,113.29 and 395,914.66 is: 546,366.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,193.03 : 991,113.29 = 395,914.66 : x
  2. Step 2: Convert to fraction form
    718,193.03/991,113.29 = 395,914.66/x
  3. Step 3: Cross multiply
    718,193.03x = 991,113.29 × 395,914.66
  4. Step 4: Simplify right side
    718,193.03x = 392,396,281,231.83
  5. Step 5: Solve for x
    x = 392,396,281,231.83/718,193.03
  6. Step 6: Final answer
    x = 546,366.04

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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.