Home / 447,189.72-617,065.70-302,310.64

Finding the Fourth Proportional to 447,189.72, 617,065.70 and 302,310.64

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Solution

The fourth proportional to 447,189.72, 617,065.70 and 302,310.64 is: 417,150.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,189.72 : 617,065.70 = 302,310.64 : x
  2. Step 2: Convert to fraction form
    447,189.72/617,065.70 = 302,310.64/x
  3. Step 3: Cross multiply
    447,189.72x = 617,065.70 × 302,310.64
  4. Step 4: Simplify right side
    447,189.72x = 186,545,526,689.05
  5. Step 5: Solve for x
    x = 186,545,526,689.05/447,189.72
  6. Step 6: Final answer
    x = 417,150.75

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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.