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Finding the Fourth Proportional to 511,410.13, 768,796.90 and 474,416.80

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Solution

The fourth proportional to 511,410.13, 768,796.90 and 474,416.80 is: 713,185.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,410.13 : 768,796.90 = 474,416.80 : x
  2. Step 2: Convert to fraction form
    511,410.13/768,796.90 = 474,416.80/x
  3. Step 3: Cross multiply
    511,410.13x = 768,796.90 × 474,416.80
  4. Step 4: Simplify right side
    511,410.13x = 364,730,161,303.94
  5. Step 5: Solve for x
    x = 364,730,161,303.94/511,410.13
  6. Step 6: Final answer
    x = 713,185.26

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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.