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Finding the Fourth Proportional to 544,955.94, 817,438.50 and 189,969.30

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Solution

The fourth proportional to 544,955.94, 817,438.50 and 189,969.30 is: 284,955.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,955.94 : 817,438.50 = 189,969.30 : x
  2. Step 2: Convert to fraction form
    544,955.94/817,438.50 = 189,969.30/x
  3. Step 3: Cross multiply
    544,955.94x = 817,438.50 × 189,969.30
  4. Step 4: Simplify right side
    544,955.94x = 155,288,219,638.05
  5. Step 5: Solve for x
    x = 155,288,219,638.05/544,955.94
  6. Step 6: Final answer
    x = 284,955.55

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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.