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Finding the Fourth Proportional to 360,075.80, 496,900.14 and 198,919.46

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Solution

The fourth proportional to 360,075.80, 496,900.14 and 198,919.46 is: 274,506.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,075.80 : 496,900.14 = 198,919.46 : x
  2. Step 2: Convert to fraction form
    360,075.80/496,900.14 = 198,919.46/x
  3. Step 3: Cross multiply
    360,075.80x = 496,900.14 × 198,919.46
  4. Step 4: Simplify right side
    360,075.80x = 98,843,107,522.72
  5. Step 5: Solve for x
    x = 98,843,107,522.72/360,075.80
  6. Step 6: Final answer
    x = 274,506.39

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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.