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Finding the Fourth Proportional to 559,149.86, 771,727.94 and 329,693.46

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Solution

The fourth proportional to 559,149.86, 771,727.94 and 329,693.46 is: 455,036.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,149.86 : 771,727.94 = 329,693.46 : x
  2. Step 2: Convert to fraction form
    559,149.86/771,727.94 = 329,693.46/x
  3. Step 3: Cross multiply
    559,149.86x = 771,727.94 × 329,693.46
  4. Step 4: Simplify right side
    559,149.86x = 254,433,654,717.27
  5. Step 5: Solve for x
    x = 254,433,654,717.27/559,149.86
  6. Step 6: Final answer
    x = 455,036.61

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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.