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Finding the Fourth Proportional to 617,550,353.80, 926,325,530.70 and 531,456,911.80

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Solution

The fourth proportional to 617,550,353.80, 926,325,530.70 and 531,456,911.80 is: 797,185,367.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,550,353.80 : 926,325,530.70 = 531,456,911.80 : x
  2. Step 2: Convert to fraction form
    617,550,353.80/926,325,530.70 = 531,456,911.80/x
  3. Step 3: Cross multiply
    617,550,353.80x = 926,325,530.70 × 531,456,911.80
  4. Step 4: Simplify right side
    617,550,353.80x = 492,302,105,867,318,144
  5. Step 5: Solve for x
    x = 492,302,105,867,318,144/617,550,353.80
  6. Step 6: Final answer
    x = 797,185,367.70

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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.