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Finding the Fourth Proportional to 368,708.38, 508,827.42 and 207,569.54

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Solution

The fourth proportional to 368,708.38, 508,827.42 and 207,569.54 is: 286,451.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,708.38 : 508,827.42 = 207,569.54 : x
  2. Step 2: Convert to fraction form
    368,708.38/508,827.42 = 207,569.54/x
  3. Step 3: Cross multiply
    368,708.38x = 508,827.42 × 207,569.54
  4. Step 4: Simplify right side
    368,708.38x = 105,617,071,918.70
  5. Step 5: Solve for x
    x = 105,617,071,918.70/368,708.38
  6. Step 6: Final answer
    x = 286,451.51

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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.