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Finding the Fourth Proportional to 317,435.60, 476,153.40 and 247,367.36

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Solution

The fourth proportional to 317,435.60, 476,153.40 and 247,367.36 is: 371,051.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,435.60 : 476,153.40 = 247,367.36 : x
  2. Step 2: Convert to fraction form
    317,435.60/476,153.40 = 247,367.36/x
  3. Step 3: Cross multiply
    317,435.60x = 476,153.40 × 247,367.36
  4. Step 4: Simplify right side
    317,435.60x = 117,784,809,513.02
  5. Step 5: Solve for x
    x = 117,784,809,513.02/317,435.60
  6. Step 6: Final answer
    x = 371,051.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.