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Finding the Fourth Proportional to 463,278.87, 694,832.70 and 143,371.10

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Solution

The fourth proportional to 463,278.87, 694,832.70 and 143,371.10 is: 215,030.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,278.87 : 694,832.70 = 143,371.10 : x
  2. Step 2: Convert to fraction form
    463,278.87/694,832.70 = 143,371.10/x
  3. Step 3: Cross multiply
    463,278.87x = 694,832.70 × 143,371.10
  4. Step 4: Simplify right side
    463,278.87x = 99,618,925,040.81
  5. Step 5: Solve for x
    x = 99,618,925,040.81/463,278.87
  6. Step 6: Final answer
    x = 215,030.15

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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.