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Finding the Fourth Proportional to 424,392.15, 585,665.09 and 230,801.70

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Solution

The fourth proportional to 424,392.15, 585,665.09 and 230,801.70 is: 318,508.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,392.15 : 585,665.09 = 230,801.70 : x
  2. Step 2: Convert to fraction form
    424,392.15/585,665.09 = 230,801.70/x
  3. Step 3: Cross multiply
    424,392.15x = 585,665.09 × 230,801.70
  4. Step 4: Simplify right side
    424,392.15x = 135,172,498,402.65
  5. Step 5: Solve for x
    x = 135,172,498,402.65/424,392.15
  6. Step 6: Final answer
    x = 318,508.48

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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.