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Finding the Fourth Proportional to 807,692.40, 1,211,441.40 and 334,328.40

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Solution

The fourth proportional to 807,692.40, 1,211,441.40 and 334,328.40 is: 501,452.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,692.40 : 1,211,441.40 = 334,328.40 : x
  2. Step 2: Convert to fraction form
    807,692.40/1,211,441.40 = 334,328.40/x
  3. Step 3: Cross multiply
    807,692.40x = 1,211,441.40 × 334,328.40
  4. Step 4: Simplify right side
    807,692.40x = 405,019,264,955.76
  5. Step 5: Solve for x
    x = 405,019,264,955.76/807,692.40
  6. Step 6: Final answer
    x = 501,452.37

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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.