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Finding the Fourth Proportional to 404,047.80, 605,415.60 and 254,019.60

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Solution

The fourth proportional to 404,047.80, 605,415.60 and 254,019.60 is: 380,616.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,047.80 : 605,415.60 = 254,019.60 : x
  2. Step 2: Convert to fraction form
    404,047.80/605,415.60 = 254,019.60/x
  3. Step 3: Cross multiply
    404,047.80x = 605,415.60 × 254,019.60
  4. Step 4: Simplify right side
    404,047.80x = 153,787,428,545.76
  5. Step 5: Solve for x
    x = 153,787,428,545.76/404,047.80
  6. Step 6: Final answer
    x = 380,616.92

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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.