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Finding the Fourth Proportional to 306,225.57, 422,614.97 and 183,722.57

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Solution

The fourth proportional to 306,225.57, 422,614.97 and 183,722.57 is: 253,551.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,225.57 : 422,614.97 = 183,722.57 : x
  2. Step 2: Convert to fraction form
    306,225.57/422,614.97 = 183,722.57/x
  3. Step 3: Cross multiply
    306,225.57x = 422,614.97 × 183,722.57
  4. Step 4: Simplify right side
    306,225.57x = 77,643,907,650.95
  5. Step 5: Solve for x
    x = 77,643,907,650.95/306,225.57
  6. Step 6: Final answer
    x = 253,551.35

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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.