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Finding the Fourth Proportional to 406,341.63, 609,552.54 and 140,067.09

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Solution

The fourth proportional to 406,341.63, 609,552.54 and 140,067.09 is: 210,114.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,341.63 : 609,552.54 = 140,067.09 : x
  2. Step 2: Convert to fraction form
    406,341.63/609,552.54 = 140,067.09/x
  3. Step 3: Cross multiply
    406,341.63x = 609,552.54 × 140,067.09
  4. Step 4: Simplify right side
    406,341.63x = 85,378,250,479.91
  5. Step 5: Solve for x
    x = 85,378,250,479.91/406,341.63
  6. Step 6: Final answer
    x = 210,114.46

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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.