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Finding the Fourth Proportional to 309,274.88, 463,124.64 and 203,774.08

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Solution

The fourth proportional to 309,274.88, 463,124.64 and 203,774.08 is: 305,142.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,274.88 : 463,124.64 = 203,774.08 : x
  2. Step 2: Convert to fraction form
    309,274.88/463,124.64 = 203,774.08/x
  3. Step 3: Cross multiply
    309,274.88x = 463,124.64 × 203,774.08
  4. Step 4: Simplify right side
    309,274.88x = 94,372,797,441.33
  5. Step 5: Solve for x
    x = 94,372,797,441.33/309,274.88
  6. Step 6: Final answer
    x = 305,142.14

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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.