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Finding the Fourth Proportional to 368,381.88, 508,366.18 and 207,237

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Solution

The fourth proportional to 368,381.88, 508,366.18 and 207,237 is: 285,986.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,381.88 : 508,366.18 = 207,237 : x
  2. Step 2: Convert to fraction form
    368,381.88/508,366.18 = 207,237/x
  3. Step 3: Cross multiply
    368,381.88x = 508,366.18 × 207,237
  4. Step 4: Simplify right side
    368,381.88x = 105,352,282,044.66
  5. Step 5: Solve for x
    x = 105,352,282,044.66/368,381.88
  6. Step 6: Final answer
    x = 285,986.60

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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.