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Finding the Fourth Proportional to 479,660.90, 661,914.68 and 264,796.36

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Solution

The fourth proportional to 479,660.90, 661,914.68 and 264,796.36 is: 365,409.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,660.90 : 661,914.68 = 264,796.36 : x
  2. Step 2: Convert to fraction form
    479,660.90/661,914.68 = 264,796.36/x
  3. Step 3: Cross multiply
    479,660.90x = 661,914.68 × 264,796.36
  4. Step 4: Simplify right side
    479,660.90x = 175,272,597,894.57
  5. Step 5: Solve for x
    x = 175,272,597,894.57/479,660.90
  6. Step 6: Final answer
    x = 365,409.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.