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Finding the Fourth Proportional to 623,274.14, 860,066.66 and 351,408.88

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Solution

The fourth proportional to 623,274.14, 860,066.66 and 351,408.88 is: 484,915.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,274.14 : 860,066.66 = 351,408.88 : x
  2. Step 2: Convert to fraction form
    623,274.14/860,066.66 = 351,408.88/x
  3. Step 3: Cross multiply
    623,274.14x = 860,066.66 × 351,408.88
  4. Step 4: Simplify right side
    623,274.14x = 302,235,061,692.87
  5. Step 5: Solve for x
    x = 302,235,061,692.87/623,274.14
  6. Step 6: Final answer
    x = 484,915.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.