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Finding the Fourth Proportional to 368,362.66, 508,370 and 207,208.10

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Solution

The fourth proportional to 368,362.66, 508,370 and 207,208.10 is: 285,963.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,362.66 : 508,370 = 207,208.10 : x
  2. Step 2: Convert to fraction form
    368,362.66/508,370 = 207,208.10/x
  3. Step 3: Cross multiply
    368,362.66x = 508,370 × 207,208.10
  4. Step 4: Simplify right side
    368,362.66x = 105,338,381,797
  5. Step 5: Solve for x
    x = 105,338,381,797/368,362.66
  6. Step 6: Final answer
    x = 285,963.79

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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.