Home / 764,556.79-1,146,077.65-359,023.05

Finding the Fourth Proportional to 764,556.79, 1,146,077.65 and 359,023.05

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Solution

The fourth proportional to 764,556.79, 1,146,077.65 and 359,023.05 is: 538,178.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,556.79 : 1,146,077.65 = 359,023.05 : x
  2. Step 2: Convert to fraction form
    764,556.79/1,146,077.65 = 359,023.05/x
  3. Step 3: Cross multiply
    764,556.79x = 1,146,077.65 × 359,023.05
  4. Step 4: Simplify right side
    764,556.79x = 411,468,291,644.72
  5. Step 5: Solve for x
    x = 411,468,291,644.72/764,556.79
  6. Step 6: Final answer
    x = 538,178.85

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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.