Home / 521,302.62-719,183.79-317,189.91

Finding the Fourth Proportional to 521,302.62, 719,183.79 and 317,189.91

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Solution

The fourth proportional to 521,302.62, 719,183.79 and 317,189.91 is: 437,591.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,302.62 : 719,183.79 = 317,189.91 : x
  2. Step 2: Convert to fraction form
    521,302.62/719,183.79 = 317,189.91/x
  3. Step 3: Cross multiply
    521,302.62x = 719,183.79 × 317,189.91
  4. Step 4: Simplify right side
    521,302.62x = 228,117,841,623.56
  5. Step 5: Solve for x
    x = 228,117,841,623.56/521,302.62
  6. Step 6: Final answer
    x = 437,591.97

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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.