Home / 663,351.04-915,449.10-376,919.56

Finding the Fourth Proportional to 663,351.04, 915,449.10 and 376,919.56

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Solution

The fourth proportional to 663,351.04, 915,449.10 and 376,919.56 is: 520,163.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,351.04 : 915,449.10 = 376,919.56 : x
  2. Step 2: Convert to fraction form
    663,351.04/915,449.10 = 376,919.56/x
  3. Step 3: Cross multiply
    663,351.04x = 915,449.10 × 376,919.56
  4. Step 4: Simplify right side
    663,351.04x = 345,050,671,974.40
  5. Step 5: Solve for x
    x = 345,050,671,974.40/663,351.04
  6. Step 6: Final answer
    x = 520,163.01

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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.