Home / 991,777.56-1,486,794.27-393,159.21

Finding the Fourth Proportional to 991,777.56, 1,486,794.27 and 393,159.21

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Solution

The fourth proportional to 991,777.56, 1,486,794.27 and 393,159.21 is: 589,393.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,777.56 : 1,486,794.27 = 393,159.21 : x
  2. Step 2: Convert to fraction form
    991,777.56/1,486,794.27 = 393,159.21/x
  3. Step 3: Cross multiply
    991,777.56x = 1,486,794.27 × 393,159.21
  4. Step 4: Simplify right side
    991,777.56x = 584,546,860,625.73
  5. Step 5: Solve for x
    x = 584,546,860,625.73/991,777.56
  6. Step 6: Final answer
    x = 589,393.11

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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.