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Finding the Fourth Proportional to 376,585.31, 519,429.80 and 240,558.86

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Solution

The fourth proportional to 376,585.31, 519,429.80 and 240,558.86 is: 331,806.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,585.31 : 519,429.80 = 240,558.86 : x
  2. Step 2: Convert to fraction form
    376,585.31/519,429.80 = 240,558.86/x
  3. Step 3: Cross multiply
    376,585.31x = 519,429.80 × 240,558.86
  4. Step 4: Simplify right side
    376,585.31x = 124,953,442,438.00
  5. Step 5: Solve for x
    x = 124,953,442,438.00/376,585.31
  6. Step 6: Final answer
    x = 331,806.47

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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.