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Finding the Fourth Proportional to 381,330.08, 526,225.49 and 209,247.51

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Solution

The fourth proportional to 381,330.08, 526,225.49 and 209,247.51 is: 288,756.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,330.08 : 526,225.49 = 209,247.51 : x
  2. Step 2: Convert to fraction form
    381,330.08/526,225.49 = 209,247.51/x
  3. Step 3: Cross multiply
    381,330.08x = 526,225.49 × 209,247.51
  4. Step 4: Simplify right side
    381,330.08x = 110,111,373,481.03
  5. Step 5: Solve for x
    x = 110,111,373,481.03/381,330.08
  6. Step 6: Final answer
    x = 288,756.07

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.