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Finding the Fourth Proportional to 461,788.87, 637,262.55 and 257,843.26

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Solution

The fourth proportional to 461,788.87, 637,262.55 and 257,843.26 is: 355,820.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,788.87 : 637,262.55 = 257,843.26 : x
  2. Step 2: Convert to fraction form
    461,788.87/637,262.55 = 257,843.26/x
  3. Step 3: Cross multiply
    461,788.87x = 637,262.55 × 257,843.26
  4. Step 4: Simplify right side
    461,788.87x = 164,313,853,367.91
  5. Step 5: Solve for x
    x = 164,313,853,367.91/461,788.87
  6. Step 6: Final answer
    x = 355,820.30

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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.