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Finding the Fourth Proportional to 447,774.72, 617,972.76 and 334,400.64

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Solution

The fourth proportional to 447,774.72, 617,972.76 and 334,400.64 is: 461,505.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,774.72 : 617,972.76 = 334,400.64 : x
  2. Step 2: Convert to fraction form
    447,774.72/617,972.76 = 334,400.64/x
  3. Step 3: Cross multiply
    447,774.72x = 617,972.76 × 334,400.64
  4. Step 4: Simplify right side
    447,774.72x = 206,650,486,446.57
  5. Step 5: Solve for x
    x = 206,650,486,446.57/447,774.72
  6. Step 6: Final answer
    x = 461,505.48

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1.5x scale

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.