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Finding the Fourth Proportional to 471,940.52, 651,247.22 and 278,303.82

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Solution

The fourth proportional to 471,940.52, 651,247.22 and 278,303.82 is: 384,041.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,940.52 : 651,247.22 = 278,303.82 : x
  2. Step 2: Convert to fraction form
    471,940.52/651,247.22 = 278,303.82/x
  3. Step 3: Cross multiply
    471,940.52x = 651,247.22 × 278,303.82
  4. Step 4: Simplify right side
    471,940.52x = 181,244,585,834.14
  5. Step 5: Solve for x
    x = 181,244,585,834.14/471,940.52
  6. Step 6: Final answer
    x = 384,041.17

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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.