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Finding the Fourth Proportional to 368,717.33, 508,839.76 and 207,578.49

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Solution

The fourth proportional to 368,717.33, 508,839.76 and 207,578.49 is: 286,463.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,717.33 : 508,839.76 = 207,578.49 : x
  2. Step 2: Convert to fraction form
    368,717.33/508,839.76 = 207,578.49/x
  3. Step 3: Cross multiply
    368,717.33x = 508,839.76 × 207,578.49
  4. Step 4: Simplify right side
    368,717.33x = 105,624,189,032.76
  5. Step 5: Solve for x
    x = 105,624,189,032.76/368,717.33
  6. Step 6: Final answer
    x = 286,463.86

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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.