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Finding the Fourth Proportional to 269,340.60, 404,010.90 and 257,093.40

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Solution

The fourth proportional to 269,340.60, 404,010.90 and 257,093.40 is: 385,640.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,340.60 : 404,010.90 = 257,093.40 : x
  2. Step 2: Convert to fraction form
    269,340.60/404,010.90 = 257,093.40/x
  3. Step 3: Cross multiply
    269,340.60x = 404,010.90 × 257,093.40
  4. Step 4: Simplify right side
    269,340.60x = 103,868,535,918.06
  5. Step 5: Solve for x
    x = 103,868,535,918.06/269,340.60
  6. Step 6: Final answer
    x = 385,640.10

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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.