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Finding the Fourth Proportional to 447,374.76, 617,358.54 and 243,426.48

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Solution

The fourth proportional to 447,374.76, 617,358.54 and 243,426.48 is: 335,918.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,374.76 : 617,358.54 = 243,426.48 : x
  2. Step 2: Convert to fraction form
    447,374.76/617,358.54 = 243,426.48/x
  3. Step 3: Cross multiply
    447,374.76x = 617,358.54 × 243,426.48
  4. Step 4: Simplify right side
    447,374.76x = 150,281,416,290.14
  5. Step 5: Solve for x
    x = 150,281,416,290.14/447,374.76
  6. Step 6: Final answer
    x = 335,918.41

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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.