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Finding the Fourth Proportional to 544,054.40, 816,211.20 and 263,340.80

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Solution

The fourth proportional to 544,054.40, 816,211.20 and 263,340.80 is: 395,073.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,054.40 : 816,211.20 = 263,340.80 : x
  2. Step 2: Convert to fraction form
    544,054.40/816,211.20 = 263,340.80/x
  3. Step 3: Cross multiply
    544,054.40x = 816,211.20 × 263,340.80
  4. Step 4: Simplify right side
    544,054.40x = 214,941,710,376.96
  5. Step 5: Solve for x
    x = 214,941,710,376.96/544,054.40
  6. Step 6: Final answer
    x = 395,073.93

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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.