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Finding the Fourth Proportional to 463,114.80, 694,672.20 and 387,007.20

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Solution

The fourth proportional to 463,114.80, 694,672.20 and 387,007.20 is: 580,510.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,114.80 : 694,672.20 = 387,007.20 : x
  2. Step 2: Convert to fraction form
    463,114.80/694,672.20 = 387,007.20/x
  3. Step 3: Cross multiply
    463,114.80x = 694,672.20 × 387,007.20
  4. Step 4: Simplify right side
    463,114.80x = 268,843,143,039.84
  5. Step 5: Solve for x
    x = 268,843,143,039.84/463,114.80
  6. Step 6: Final answer
    x = 580,510.80

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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.