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Finding the Fourth Proportional to 461,464.49, 636,819.80 and 257,513.26

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Solution

The fourth proportional to 461,464.49, 636,819.80 and 257,513.26 is: 355,367.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,464.49 : 636,819.80 = 257,513.26 : x
  2. Step 2: Convert to fraction form
    461,464.49/636,819.80 = 257,513.26/x
  3. Step 3: Cross multiply
    461,464.49x = 636,819.80 × 257,513.26
  4. Step 4: Simplify right side
    461,464.49x = 163,989,541,442.98
  5. Step 5: Solve for x
    x = 163,989,541,442.98/461,464.49
  6. Step 6: Final answer
    x = 355,367.63

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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.