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Finding the Fourth Proportional to 570,814.94, 787,532.68 and 329,092.21

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Solution

The fourth proportional to 570,814.94, 787,532.68 and 329,092.21 is: 454,036.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,814.94 : 787,532.68 = 329,092.21 : x
  2. Step 2: Convert to fraction form
    570,814.94/787,532.68 = 329,092.21/x
  3. Step 3: Cross multiply
    570,814.94x = 787,532.68 × 329,092.21
  4. Step 4: Simplify right side
    570,814.94x = 259,170,864,525.30
  5. Step 5: Solve for x
    x = 259,170,864,525.30/570,814.94
  6. Step 6: Final answer
    x = 454,036.59

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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.