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Finding the Fourth Proportional to 479,330.36, 661,475.39 and 264,470.40

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Solution

The fourth proportional to 479,330.36, 661,475.39 and 264,470.40 is: 364,968.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,330.36 : 661,475.39 = 264,470.40 : x
  2. Step 2: Convert to fraction form
    479,330.36/661,475.39 = 264,470.40/x
  3. Step 3: Cross multiply
    479,330.36x = 661,475.39 × 264,470.40
  4. Step 4: Simplify right side
    479,330.36x = 174,940,660,983.46
  5. Step 5: Solve for x
    x = 174,940,660,983.46/479,330.36
  6. Step 6: Final answer
    x = 364,968.88

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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.