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Finding the Fourth Proportional to 454,834.40, 680,939.40 and 441,712.40

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Solution

The fourth proportional to 454,834.40, 680,939.40 and 441,712.40 is: 661,294.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,834.40 : 680,939.40 = 441,712.40 : x
  2. Step 2: Convert to fraction form
    454,834.40/680,939.40 = 441,712.40/x
  3. Step 3: Cross multiply
    454,834.40x = 680,939.40 × 441,712.40
  4. Step 4: Simplify right side
    454,834.40x = 300,779,376,628.56
  5. Step 5: Solve for x
    x = 300,779,376,628.56/454,834.40
  6. Step 6: Final answer
    x = 661,294.26

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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.