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Finding the Fourth Proportional to 479,445.15, 661,883.08 and 350,238.55

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Solution

The fourth proportional to 479,445.15, 661,883.08 and 350,238.55 is: 483,510.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,445.15 : 661,883.08 = 350,238.55 : x
  2. Step 2: Convert to fraction form
    479,445.15/661,883.08 = 350,238.55/x
  3. Step 3: Cross multiply
    479,445.15x = 661,883.08 × 350,238.55
  4. Step 4: Simplify right side
    479,445.15x = 231,816,970,208.73
  5. Step 5: Solve for x
    x = 231,816,970,208.73/479,445.15
  6. Step 6: Final answer
    x = 483,510.93

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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.