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Finding the Fourth Proportional to 200,620.80, 299,116.80 and 190,252.80

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Solution

The fourth proportional to 200,620.80, 299,116.80 and 190,252.80 is: 283,658.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,620.80 : 299,116.80 = 190,252.80 : x
  2. Step 2: Convert to fraction form
    200,620.80/299,116.80 = 190,252.80/x
  3. Step 3: Cross multiply
    200,620.80x = 299,116.80 × 190,252.80
  4. Step 4: Simplify right side
    200,620.80x = 56,907,808,727.04
  5. Step 5: Solve for x
    x = 56,907,808,727.04/200,620.80
  6. Step 6: Final answer
    x = 283,658.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.