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Finding the Fourth Proportional to 368,372.61, 508,383.54 and 207,217.98

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Solution

The fourth proportional to 368,372.61, 508,383.54 and 207,217.98 is: 285,977.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,372.61 : 508,383.54 = 207,217.98 : x
  2. Step 2: Convert to fraction form
    368,372.61/508,383.54 = 207,217.98/x
  3. Step 3: Cross multiply
    368,372.61x = 508,383.54 × 207,217.98
  4. Step 4: Simplify right side
    368,372.61x = 105,346,210,224.05
  5. Step 5: Solve for x
    x = 105,346,210,224.05/368,372.61
  6. Step 6: Final answer
    x = 285,977.32

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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.