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Finding the Fourth Proportional to 943,638.30, 1,412,692.65 and 833,046.30

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Solution

The fourth proportional to 943,638.30, 1,412,692.65 and 833,046.30 is: 1,247,128.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,638.30 : 1,412,692.65 = 833,046.30 : x
  2. Step 2: Convert to fraction form
    943,638.30/1,412,692.65 = 833,046.30/x
  3. Step 3: Cross multiply
    943,638.30x = 1,412,692.65 × 833,046.30
  4. Step 4: Simplify right side
    943,638.30x = 1,176,838,385,119.70
  5. Step 5: Solve for x
    x = 1,176,838,385,119.70/943,638.30
  6. Step 6: Final answer
    x = 1,247,128.68

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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.