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Finding the Fourth Proportional to 445,910.32, 668,863.64 and 161,534.28

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Solution

The fourth proportional to 445,910.32, 668,863.64 and 161,534.28 is: 242,300.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,910.32 : 668,863.64 = 161,534.28 : x
  2. Step 2: Convert to fraction form
    445,910.32/668,863.64 = 161,534.28/x
  3. Step 3: Cross multiply
    445,910.32x = 668,863.64 × 161,534.28
  4. Step 4: Simplify right side
    445,910.32x = 108,044,406,505.58
  5. Step 5: Solve for x
    x = 108,044,406,505.58/445,910.32
  6. Step 6: Final answer
    x = 242,300.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.