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Finding the Fourth Proportional to 447,720.63, 617,898.06 and 334,346.55

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Solution

The fourth proportional to 447,720.63, 617,898.06 and 334,346.55 is: 461,430.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,720.63 : 617,898.06 = 334,346.55 : x
  2. Step 2: Convert to fraction form
    447,720.63/617,898.06 = 334,346.55/x
  3. Step 3: Cross multiply
    447,720.63x = 617,898.06 × 334,346.55
  4. Step 4: Simplify right side
    447,720.63x = 206,592,084,612.69
  5. Step 5: Solve for x
    x = 206,592,084,612.69/447,720.63
  6. Step 6: Final answer
    x = 461,430.79

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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.