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Finding the Fourth Proportional to 479,215.85, 661,314.17 and 264,364.97

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Solution

The fourth proportional to 479,215.85, 661,314.17 and 264,364.97 is: 364,821.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,215.85 : 661,314.17 = 264,364.97 : x
  2. Step 2: Convert to fraction form
    479,215.85/661,314.17 = 264,364.97/x
  3. Step 3: Cross multiply
    479,215.85x = 661,314.17 × 264,364.97
  4. Step 4: Simplify right side
    479,215.85x = 174,828,298,066.97
  5. Step 5: Solve for x
    x = 174,828,298,066.97/479,215.85
  6. Step 6: Final answer
    x = 364,821.61

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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.