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Finding the Fourth Proportional to 424,377.81, 587,183.50 and 370,043.28

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Solution

The fourth proportional to 424,377.81, 587,183.50 and 370,043.28 is: 512,004.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,377.81 : 587,183.50 = 370,043.28 : x
  2. Step 2: Convert to fraction form
    424,377.81/587,183.50 = 370,043.28/x
  3. Step 3: Cross multiply
    424,377.81x = 587,183.50 × 370,043.28
  4. Step 4: Simplify right side
    424,377.81x = 217,283,303,792.90
  5. Step 5: Solve for x
    x = 217,283,303,792.90/424,377.81
  6. Step 6: Final answer
    x = 512,004.40

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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.