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Finding the Fourth Proportional to 606,458.40, 910,015.65 and 251,508.30

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Solution

The fourth proportional to 606,458.40, 910,015.65 and 251,508.30 is: 377,398.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,458.40 : 910,015.65 = 251,508.30 : x
  2. Step 2: Convert to fraction form
    606,458.40/910,015.65 = 251,508.30/x
  3. Step 3: Cross multiply
    606,458.40x = 910,015.65 × 251,508.30
  4. Step 4: Simplify right side
    606,458.40x = 228,876,489,104.90
  5. Step 5: Solve for x
    x = 228,876,489,104.90/606,458.40
  6. Step 6: Final answer
    x = 377,398.50

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1.5x scale

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.