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Finding the Fourth Proportional to 306,169.41, 459,263.30 and 253,274.38

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Solution

The fourth proportional to 306,169.41, 459,263.30 and 253,274.38 is: 379,919.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,169.41 : 459,263.30 = 253,274.38 : x
  2. Step 2: Convert to fraction form
    306,169.41/459,263.30 = 253,274.38/x
  3. Step 3: Cross multiply
    306,169.41x = 459,263.30 × 253,274.38
  4. Step 4: Simplify right side
    306,169.41x = 116,319,627,564.25
  5. Step 5: Solve for x
    x = 116,319,627,564.25/306,169.41
  6. Step 6: Final answer
    x = 379,919.17

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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.