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Finding the Fourth Proportional to 317,185.50, 437,675.76 and 173,907.84

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Solution

The fourth proportional to 317,185.50, 437,675.76 and 173,907.84 is: 239,970.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,185.50 : 437,675.76 = 173,907.84 : x
  2. Step 2: Convert to fraction form
    317,185.50/437,675.76 = 173,907.84/x
  3. Step 3: Cross multiply
    317,185.50x = 437,675.76 × 173,907.84
  4. Step 4: Simplify right side
    317,185.50x = 76,115,246,041.96
  5. Step 5: Solve for x
    x = 76,115,246,041.96/317,185.50
  6. Step 6: Final answer
    x = 239,970.76

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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.