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Finding the Fourth Proportional to 608,920.10, 913,639.35 and 384,452.90

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Solution

The fourth proportional to 608,920.10, 913,639.35 and 384,452.90 is: 576,843.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,920.10 : 913,639.35 = 384,452.90 : x
  2. Step 2: Convert to fraction form
    608,920.10/913,639.35 = 384,452.90/x
  3. Step 3: Cross multiply
    608,920.10x = 913,639.35 × 384,452.90
  4. Step 4: Simplify right side
    608,920.10x = 351,251,297,661.62
  5. Step 5: Solve for x
    x = 351,251,297,661.62/608,920.10
  6. Step 6: Final answer
    x = 576,843.00

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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.