Home / 957,408.36-1,321,216.92-527,688.72

Finding the Fourth Proportional to 957,408.36, 1,321,216.92 and 527,688.72

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Solution

The fourth proportional to 957,408.36, 1,321,216.92 and 527,688.72 is: 728,206.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,408.36 : 1,321,216.92 = 527,688.72 : x
  2. Step 2: Convert to fraction form
    957,408.36/1,321,216.92 = 527,688.72/x
  3. Step 3: Cross multiply
    957,408.36x = 1,321,216.92 × 527,688.72
  4. Step 4: Simplify right side
    957,408.36x = 697,191,265,357.14
  5. Step 5: Solve for x
    x = 697,191,265,357.14/957,408.36
  6. Step 6: Final answer
    x = 728,206.79

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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.