Home / 289,115.20-433,089.60-194,636.80

Finding the Fourth Proportional to 289,115.20, 433,089.60 and 194,636.80

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Solution

The fourth proportional to 289,115.20, 433,089.60 and 194,636.80 is: 291,562.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,115.20 : 433,089.60 = 194,636.80 : x
  2. Step 2: Convert to fraction form
    289,115.20/433,089.60 = 194,636.80/x
  3. Step 3: Cross multiply
    289,115.20x = 433,089.60 × 194,636.80
  4. Step 4: Simplify right side
    289,115.20x = 84,295,173,857.28
  5. Step 5: Solve for x
    x = 84,295,173,857.28/289,115.20
  6. Step 6: Final answer
    x = 291,562.58

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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.