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Finding the Fourth Proportional to 368,437.95, 508,440.77 and 205,091.86

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Solution

The fourth proportional to 368,437.95, 508,440.77 and 205,091.86 is: 283,024.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,437.95 : 508,440.77 = 205,091.86 : x
  2. Step 2: Convert to fraction form
    368,437.95/508,440.77 = 205,091.86/x
  3. Step 3: Cross multiply
    368,437.95x = 508,440.77 × 205,091.86
  4. Step 4: Simplify right side
    368,437.95x = 104,277,062,193.67
  5. Step 5: Solve for x
    x = 104,277,062,193.67/368,437.95
  6. Step 6: Final answer
    x = 283,024.76

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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.