Home / 523,147.75-784,522.45-309,975.82

Finding the Fourth Proportional to 523,147.75, 784,522.45 and 309,975.82

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Solution

The fourth proportional to 523,147.75, 784,522.45 and 309,975.82 is: 464,845.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,147.75 : 784,522.45 = 309,975.82 : x
  2. Step 2: Convert to fraction form
    523,147.75/784,522.45 = 309,975.82/x
  3. Step 3: Cross multiply
    523,147.75x = 784,522.45 × 309,975.82
  4. Step 4: Simplify right side
    523,147.75x = 243,182,988,197.28
  5. Step 5: Solve for x
    x = 243,182,988,197.28/523,147.75
  6. Step 6: Final answer
    x = 464,845.71

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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.