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Finding the Fourth Proportional to 469,779.74, 648,310.44 and 276,151.95

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Solution

The fourth proportional to 469,779.74, 648,310.44 and 276,151.95 is: 381,098.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,779.74 : 648,310.44 = 276,151.95 : x
  2. Step 2: Convert to fraction form
    469,779.74/648,310.44 = 276,151.95/x
  3. Step 3: Cross multiply
    469,779.74x = 648,310.44 × 276,151.95
  4. Step 4: Simplify right side
    469,779.74x = 179,032,193,246.93
  5. Step 5: Solve for x
    x = 179,032,193,246.93/469,779.74
  6. Step 6: Final answer
    x = 381,098.16

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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.