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Finding the Fourth Proportional to 622,850.60, 933,692.70 and 487,839.80

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Solution

The fourth proportional to 622,850.60, 933,692.70 and 487,839.80 is: 731,302.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,850.60 : 933,692.70 = 487,839.80 : x
  2. Step 2: Convert to fraction form
    622,850.60/933,692.70 = 487,839.80/x
  3. Step 3: Cross multiply
    622,850.60x = 933,692.70 × 487,839.80
  4. Step 4: Simplify right side
    622,850.60x = 455,492,460,029.46
  5. Step 5: Solve for x
    x = 455,492,460,029.46/622,850.60
  6. Step 6: Final answer
    x = 731,302.92

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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.