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Finding the Fourth Proportional to 454,265.40, 680,085.90 and 441,143.40

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Solution

The fourth proportional to 454,265.40, 680,085.90 and 441,143.40 is: 660,440.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,265.40 : 680,085.90 = 441,143.40 : x
  2. Step 2: Convert to fraction form
    454,265.40/680,085.90 = 441,143.40/x
  3. Step 3: Cross multiply
    454,265.40x = 680,085.90 × 441,143.40
  4. Step 4: Simplify right side
    454,265.40x = 300,015,406,218.06
  5. Step 5: Solve for x
    x = 300,015,406,218.06/454,265.40
  6. Step 6: Final answer
    x = 660,440.80

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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.