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Finding the Fourth Proportional to 644,164.40, 888,929.79 and 357,677.12

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Solution

The fourth proportional to 644,164.40, 888,929.79 and 357,677.12 is: 493,584.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,164.40 : 888,929.79 = 357,677.12 : x
  2. Step 2: Convert to fraction form
    644,164.40/888,929.79 = 357,677.12/x
  3. Step 3: Cross multiply
    644,164.40x = 888,929.79 × 357,677.12
  4. Step 4: Simplify right side
    644,164.40x = 317,949,847,169.41
  5. Step 5: Solve for x
    x = 317,949,847,169.41/644,164.40
  6. Step 6: Final answer
    x = 493,584.94

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.