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Finding the Fourth Proportional to 463,737.56, 694,700.55 and 319,617.90

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Solution

The fourth proportional to 463,737.56, 694,700.55 and 319,617.90 is: 478,802.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,737.56 : 694,700.55 = 319,617.90 : x
  2. Step 2: Convert to fraction form
    463,737.56/694,700.55 = 319,617.90/x
  3. Step 3: Cross multiply
    463,737.56x = 694,700.55 × 319,617.90
  4. Step 4: Simplify right side
    463,737.56x = 222,038,730,919.85
  5. Step 5: Solve for x
    x = 222,038,730,919.85/463,737.56
  6. Step 6: Final answer
    x = 478,802.57

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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.