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Finding the Fourth Proportional to 308,536.60, 425,783.64 and 181,214.32

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Solution

The fourth proportional to 308,536.60, 425,783.64 and 181,214.32 is: 250,077.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,536.60 : 425,783.64 = 181,214.32 : x
  2. Step 2: Convert to fraction form
    308,536.60/425,783.64 = 181,214.32/x
  3. Step 3: Cross multiply
    308,536.60x = 425,783.64 × 181,214.32
  4. Step 4: Simplify right side
    308,536.60x = 77,158,092,789.72
  5. Step 5: Solve for x
    x = 77,158,092,789.72/308,536.60
  6. Step 6: Final answer
    x = 250,077.60

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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.