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Finding the Fourth Proportional to 424,380.74, 587,187.56 and 370,046.21

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Solution

The fourth proportional to 424,380.74, 587,187.56 and 370,046.21 is: 512,008.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,380.74 : 587,187.56 = 370,046.21 : x
  2. Step 2: Convert to fraction form
    424,380.74/587,187.56 = 370,046.21/x
  3. Step 3: Cross multiply
    424,380.74x = 587,187.56 × 370,046.21
  4. Step 4: Simplify right side
    424,380.74x = 217,286,529,286.92
  5. Step 5: Solve for x
    x = 217,286,529,286.92/424,380.74
  6. Step 6: Final answer
    x = 512,008.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.