Home / 979,742.58-1,352,043.75-550,023.54

Finding the Fourth Proportional to 979,742.58, 1,352,043.75 and 550,023.54

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Solution

The fourth proportional to 979,742.58, 1,352,043.75 and 550,023.54 is: 759,031.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,742.58 : 1,352,043.75 = 550,023.54 : x
  2. Step 2: Convert to fraction form
    979,742.58/1,352,043.75 = 550,023.54/x
  3. Step 3: Cross multiply
    979,742.58x = 1,352,043.75 × 550,023.54
  4. Step 4: Simplify right side
    979,742.58x = 743,655,889,609.88
  5. Step 5: Solve for x
    x = 743,655,889,609.88/979,742.58
  6. Step 6: Final answer
    x = 759,031.92

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1.5x scale

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.