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Finding the Fourth Proportional to 447,588.82, 617,680.45 and 243,645.60

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Solution

The fourth proportional to 447,588.82, 617,680.45 and 243,645.60 is: 336,235.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,588.82 : 617,680.45 = 243,645.60 : x
  2. Step 2: Convert to fraction form
    447,588.82/617,680.45 = 243,645.60/x
  3. Step 3: Cross multiply
    447,588.82x = 617,680.45 × 243,645.60
  4. Step 4: Simplify right side
    447,588.82x = 150,495,123,239.41
  5. Step 5: Solve for x
    x = 150,495,123,239.41/447,588.82
  6. Step 6: Final answer
    x = 336,235.22

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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.