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Finding the Fourth Proportional to 405,671.66, 559,943.31 and 267,951.35

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Solution

The fourth proportional to 405,671.66, 559,943.31 and 267,951.35 is: 369,849.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,671.66 : 559,943.31 = 267,951.35 : x
  2. Step 2: Convert to fraction form
    405,671.66/559,943.31 = 267,951.35/x
  3. Step 3: Cross multiply
    405,671.66x = 559,943.31 × 267,951.35
  4. Step 4: Simplify right side
    405,671.66x = 150,037,563,038.25
  5. Step 5: Solve for x
    x = 150,037,563,038.25/405,671.66
  6. Step 6: Final answer
    x = 369,849.76

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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.