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Finding the Fourth Proportional to 501,790.28, 692,155.59 and 297,696.71

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Solution

The fourth proportional to 501,790.28, 692,155.59 and 297,696.71 is: 410,634.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,790.28 : 692,155.59 = 297,696.71 : x
  2. Step 2: Convert to fraction form
    501,790.28/692,155.59 = 297,696.71/x
  3. Step 3: Cross multiply
    501,790.28x = 692,155.59 × 297,696.71
  4. Step 4: Simplify right side
    501,790.28x = 206,052,438,490.33
  5. Step 5: Solve for x
    x = 206,052,438,490.33/501,790.28
  6. Step 6: Final answer
    x = 410,634.58

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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.