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Finding the Fourth Proportional to 447,393.61, 617,394.03 and 243,448.57

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Solution

The fourth proportional to 447,393.61, 617,394.03 and 243,448.57 is: 335,954.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,393.61 : 617,394.03 = 243,448.57 : x
  2. Step 2: Convert to fraction form
    447,393.61/617,394.03 = 243,448.57/x
  3. Step 3: Cross multiply
    447,393.61x = 617,394.03 × 243,448.57
  4. Step 4: Simplify right side
    447,393.61x = 150,303,693,730.04
  5. Step 5: Solve for x
    x = 150,303,693,730.04/447,393.61
  6. Step 6: Final answer
    x = 335,954.05

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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.