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Finding the Fourth Proportional to 447,274, 617,238.12 and 246,065.68

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Solution

The fourth proportional to 447,274, 617,238.12 and 246,065.68 is: 339,570.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,274 : 617,238.12 = 246,065.68 : x
  2. Step 2: Convert to fraction form
    447,274/617,238.12 = 246,065.68/x
  3. Step 3: Cross multiply
    447,274x = 617,238.12 × 246,065.68
  4. Step 4: Simplify right side
    447,274x = 151,881,117,719.72
  5. Step 5: Solve for x
    x = 151,881,117,719.72/447,274
  6. Step 6: Final answer
    x = 339,570.64

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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.