Home / 289,209.18-433,530.60-120,777.66

Finding the Fourth Proportional to 289,209.18, 433,530.60 and 120,777.66

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Solution

The fourth proportional to 289,209.18, 433,530.60 and 120,777.66 is: 181,048.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,209.18 : 433,530.60 = 120,777.66 : x
  2. Step 2: Convert to fraction form
    289,209.18/433,530.60 = 120,777.66/x
  3. Step 3: Cross multiply
    289,209.18x = 433,530.60 × 120,777.66
  4. Step 4: Simplify right side
    289,209.18x = 52,360,811,406.40
  5. Step 5: Solve for x
    x = 52,360,811,406.40/289,209.18
  6. Step 6: Final answer
    x = 181,048.23

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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.