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Finding the Fourth Proportional to 624,114.90, 934,860.15 and 519,138.90

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Solution

The fourth proportional to 624,114.90, 934,860.15 and 519,138.90 is: 777,616.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,114.90 : 934,860.15 = 519,138.90 : x
  2. Step 2: Convert to fraction form
    624,114.90/934,860.15 = 519,138.90/x
  3. Step 3: Cross multiply
    624,114.90x = 934,860.15 × 519,138.90
  4. Step 4: Simplify right side
    624,114.90x = 485,322,269,924.84
  5. Step 5: Solve for x
    x = 485,322,269,924.84/624,114.90
  6. Step 6: Final answer
    x = 777,616.86

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1.5x scale

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.