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Finding the Fourth Proportional to 641,692.35, 963,484.74 and 357,937.29

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Solution

The fourth proportional to 641,692.35, 963,484.74 and 357,937.29 is: 537,433.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,692.35 : 963,484.74 = 357,937.29 : x
  2. Step 2: Convert to fraction form
    641,692.35/963,484.74 = 357,937.29/x
  3. Step 3: Cross multiply
    641,692.35x = 963,484.74 × 357,937.29
  4. Step 4: Simplify right side
    641,692.35x = 344,867,116,791.96
  5. Step 5: Solve for x
    x = 344,867,116,791.96/641,692.35
  6. Step 6: Final answer
    x = 537,433.74

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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.