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Finding the Fourth Proportional to 447,588.80, 617,680.42 and 243,645.58

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Solution

The fourth proportional to 447,588.80, 617,680.42 and 243,645.58 is: 336,235.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,588.80 : 617,680.42 = 243,645.58 : x
  2. Step 2: Convert to fraction form
    447,588.80/617,680.42 = 243,645.58/x
  3. Step 3: Cross multiply
    447,588.80x = 617,680.42 × 243,645.58
  4. Step 4: Simplify right side
    447,588.80x = 150,495,104,348.53
  5. Step 5: Solve for x
    x = 150,495,104,348.53/447,588.80
  6. Step 6: Final answer
    x = 336,235.19

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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.