Home / 377,120.75-520,352.19-211,554.23

Finding the Fourth Proportional to 377,120.75, 520,352.19 and 211,554.23

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Solution

The fourth proportional to 377,120.75, 520,352.19 and 211,554.23 is: 291,903.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,120.75 : 520,352.19 = 211,554.23 : x
  2. Step 2: Convert to fraction form
    377,120.75/520,352.19 = 211,554.23/x
  3. Step 3: Cross multiply
    377,120.75x = 520,352.19 × 211,554.23
  4. Step 4: Simplify right side
    377,120.75x = 110,082,704,282.50
  5. Step 5: Solve for x
    x = 110,082,704,282.50/377,120.75
  6. Step 6: Final answer
    x = 291,903.07

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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.