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Finding the Fourth Proportional to 404,074.40, 606,284.40 and 254,429.60

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Solution

The fourth proportional to 404,074.40, 606,284.40 and 254,429.60 is: 381,753.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,074.40 : 606,284.40 = 254,429.60 : x
  2. Step 2: Convert to fraction form
    404,074.40/606,284.40 = 254,429.60/x
  3. Step 3: Cross multiply
    404,074.40x = 606,284.40 × 254,429.60
  4. Step 4: Simplify right side
    404,074.40x = 154,256,697,378.24
  5. Step 5: Solve for x
    x = 154,256,697,378.24/404,074.40
  6. Step 6: Final answer
    x = 381,753.21

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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.