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Finding the Fourth Proportional to 404,130.80, 605,904.60 and 263,968.40

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Solution

The fourth proportional to 404,130.80, 605,904.60 and 263,968.40 is: 395,762.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,130.80 : 605,904.60 = 263,968.40 : x
  2. Step 2: Convert to fraction form
    404,130.80/605,904.60 = 263,968.40/x
  3. Step 3: Cross multiply
    404,130.80x = 605,904.60 × 263,968.40
  4. Step 4: Simplify right side
    404,130.80x = 159,939,667,814.64
  5. Step 5: Solve for x
    x = 159,939,667,814.64/404,130.80
  6. Step 6: Final answer
    x = 395,762.13

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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.