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Finding the Fourth Proportional to 544,509.60, 816,803.30 and 145,148.28

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Solution

The fourth proportional to 544,509.60, 816,803.30 and 145,148.28 is: 217,732.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,509.60 : 816,803.30 = 145,148.28 : x
  2. Step 2: Convert to fraction form
    544,509.60/816,803.30 = 145,148.28/x
  3. Step 3: Cross multiply
    544,509.60x = 816,803.30 × 145,148.28
  4. Step 4: Simplify right side
    544,509.60x = 118,557,594,093.32
  5. Step 5: Solve for x
    x = 118,557,594,093.32/544,509.60
  6. Step 6: Final answer
    x = 217,732.79

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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.