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Finding the Fourth Proportional to 334,578.70, 501,868.05 and 307,621.90

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Solution

The fourth proportional to 334,578.70, 501,868.05 and 307,621.90 is: 461,432.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,578.70 : 501,868.05 = 307,621.90 : x
  2. Step 2: Convert to fraction form
    334,578.70/501,868.05 = 307,621.90/x
  3. Step 3: Cross multiply
    334,578.70x = 501,868.05 × 307,621.90
  4. Step 4: Simplify right side
    334,578.70x = 154,385,603,090.30
  5. Step 5: Solve for x
    x = 154,385,603,090.30/334,578.70
  6. Step 6: Final answer
    x = 461,432.85

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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.