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Finding the Fourth Proportional to 368,222.28, 508,141.89 and 207,077.28

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Solution

The fourth proportional to 368,222.28, 508,141.89 and 207,077.28 is: 285,763.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,222.28 : 508,141.89 = 207,077.28 : x
  2. Step 2: Convert to fraction form
    368,222.28/508,141.89 = 207,077.28/x
  3. Step 3: Cross multiply
    368,222.28x = 508,141.89 × 207,077.28
  4. Step 4: Simplify right side
    368,222.28x = 105,224,640,435.26
  5. Step 5: Solve for x
    x = 105,224,640,435.26/368,222.28
  6. Step 6: Final answer
    x = 285,763.92

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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.