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Finding the Fourth Proportional to 417,696.53, 576,891.05 and 282,289.64

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Solution

The fourth proportional to 417,696.53, 576,891.05 and 282,289.64 is: 389,877.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,696.53 : 576,891.05 = 282,289.64 : x
  2. Step 2: Convert to fraction form
    417,696.53/576,891.05 = 282,289.64/x
  3. Step 3: Cross multiply
    417,696.53x = 576,891.05 × 282,289.64
  4. Step 4: Simplify right side
    417,696.53x = 162,850,362,527.82
  5. Step 5: Solve for x
    x = 162,850,362,527.82/417,696.53
  6. Step 6: Final answer
    x = 389,877.23

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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.