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Finding the Fourth Proportional to 269,582.80, 404,374.20 and 266,083.60

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Solution

The fourth proportional to 269,582.80, 404,374.20 and 266,083.60 is: 399,125.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,582.80 : 404,374.20 = 266,083.60 : x
  2. Step 2: Convert to fraction form
    269,582.80/404,374.20 = 266,083.60/x
  3. Step 3: Cross multiply
    269,582.80x = 404,374.20 × 266,083.60
  4. Step 4: Simplify right side
    269,582.80x = 107,597,342,883.12
  5. Step 5: Solve for x
    x = 107,597,342,883.12/269,582.80
  6. Step 6: Final answer
    x = 399,125.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.