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Finding the Fourth Proportional to 641,705.54, 963,504.54 and 357,950.48

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Solution

The fourth proportional to 641,705.54, 963,504.54 and 357,950.48 is: 537,453.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,705.54 : 963,504.54 = 357,950.48 : x
  2. Step 2: Convert to fraction form
    641,705.54/963,504.54 = 357,950.48/x
  3. Step 3: Cross multiply
    641,705.54x = 963,504.54 × 357,950.48
  4. Step 4: Simplify right side
    641,705.54x = 344,886,912,575.18
  5. Step 5: Solve for x
    x = 344,886,912,575.18/641,705.54
  6. Step 6: Final answer
    x = 537,453.54

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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.