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Finding the Fourth Proportional to 317,043.28, 437,519.40 and 173,804.56

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Solution

The fourth proportional to 317,043.28, 437,519.40 and 173,804.56 is: 239,850.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,043.28 : 437,519.40 = 173,804.56 : x
  2. Step 2: Convert to fraction form
    317,043.28/437,519.40 = 173,804.56/x
  3. Step 3: Cross multiply
    317,043.28x = 437,519.40 × 173,804.56
  4. Step 4: Simplify right side
    317,043.28x = 76,042,866,808.46
  5. Step 5: Solve for x
    x = 76,042,866,808.46/317,043.28
  6. Step 6: Final answer
    x = 239,850.11

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1.5x scale

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.