Home / 435,764.11-653,683.81-120,221.01

Finding the Fourth Proportional to 435,764.11, 653,683.81 and 120,221.01

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Solution

The fourth proportional to 435,764.11, 653,683.81 and 120,221.01 is: 180,341.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,764.11 : 653,683.81 = 120,221.01 : x
  2. Step 2: Convert to fraction form
    435,764.11/653,683.81 = 120,221.01/x
  3. Step 3: Cross multiply
    435,764.11x = 653,683.81 × 120,221.01
  4. Step 4: Simplify right side
    435,764.11x = 78,586,527,858.85
  5. Step 5: Solve for x
    x = 78,586,527,858.85/435,764.11
  6. Step 6: Final answer
    x = 180,341.90

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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.