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Finding the Fourth Proportional to 317,361.03, 437,950.31 and 177,657.70

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Solution

The fourth proportional to 317,361.03, 437,950.31 and 177,657.70 is: 245,163.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,361.03 : 437,950.31 = 177,657.70 : x
  2. Step 2: Convert to fraction form
    317,361.03/437,950.31 = 177,657.70/x
  3. Step 3: Cross multiply
    317,361.03x = 437,950.31 × 177,657.70
  4. Step 4: Simplify right side
    317,361.03x = 77,805,242,805.72
  5. Step 5: Solve for x
    x = 77,805,242,805.72/317,361.03
  6. Step 6: Final answer
    x = 245,163.19

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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.