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Finding the Fourth Proportional to 454,709.40, 682,064.10 and 354,326.10

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Solution

The fourth proportional to 454,709.40, 682,064.10 and 354,326.10 is: 531,489.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,709.40 : 682,064.10 = 354,326.10 : x
  2. Step 2: Convert to fraction form
    454,709.40/682,064.10 = 354,326.10/x
  3. Step 3: Cross multiply
    454,709.40x = 682,064.10 × 354,326.10
  4. Step 4: Simplify right side
    454,709.40x = 241,673,112,503.01
  5. Step 5: Solve for x
    x = 241,673,112,503.01/454,709.40
  6. Step 6: Final answer
    x = 531,489.15

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Double scale
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Similar ratio
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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.