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Finding the Fourth Proportional to 423,816, 636,015.60 and 174,498

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Solution

The fourth proportional to 423,816, 636,015.60 and 174,498 is: 261,867.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,816 : 636,015.60 = 174,498 : x
  2. Step 2: Convert to fraction form
    423,816/636,015.60 = 174,498/x
  3. Step 3: Cross multiply
    423,816x = 636,015.60 × 174,498
  4. Step 4: Simplify right side
    423,816x = 110,983,450,168.80
  5. Step 5: Solve for x
    x = 110,983,450,168.80/423,816
  6. Step 6: Final answer
    x = 261,867.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.