Home / 430,356.11-645,297.17-177,579.14

Finding the Fourth Proportional to 430,356.11, 645,297.17 and 177,579.14

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Solution

The fourth proportional to 430,356.11, 645,297.17 and 177,579.14 is: 266,270.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,356.11 : 645,297.17 = 177,579.14 : x
  2. Step 2: Convert to fraction form
    430,356.11/645,297.17 = 177,579.14/x
  3. Step 3: Cross multiply
    430,356.11x = 645,297.17 × 177,579.14
  4. Step 4: Simplify right side
    430,356.11x = 114,591,312,378.65
  5. Step 5: Solve for x
    x = 114,591,312,378.65/430,356.11
  6. Step 6: Final answer
    x = 266,270.91

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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.