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Finding the Fourth Proportional to 531,305.28, 797,074.32 and 157,357.44

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Solution

The fourth proportional to 531,305.28, 797,074.32 and 157,357.44 is: 236,070.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,305.28 : 797,074.32 = 157,357.44 : x
  2. Step 2: Convert to fraction form
    531,305.28/797,074.32 = 157,357.44/x
  3. Step 3: Cross multiply
    531,305.28x = 797,074.32 × 157,357.44
  4. Step 4: Simplify right side
    531,305.28x = 125,425,574,484.94
  5. Step 5: Solve for x
    x = 125,425,574,484.94/531,305.28
  6. Step 6: Final answer
    x = 236,070.63

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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.