Home / 289,209.08-433,902.22-129,419.47

Finding the Fourth Proportional to 289,209.08, 433,902.22 and 129,419.47

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Solution

The fourth proportional to 289,209.08, 433,902.22 and 129,419.47 is: 194,168.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,209.08 : 433,902.22 = 129,419.47 : x
  2. Step 2: Convert to fraction form
    289,209.08/433,902.22 = 129,419.47/x
  3. Step 3: Cross multiply
    289,209.08x = 433,902.22 × 129,419.47
  4. Step 4: Simplify right side
    289,209.08x = 56,155,395,563.05
  5. Step 5: Solve for x
    x = 56,155,395,563.05/289,209.08
  6. Step 6: Final answer
    x = 194,168.85

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1.5x scale

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.