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Finding the Fourth Proportional to 531,472.48, 797,072.46 and 157,408

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Solution

The fourth proportional to 531,472.48, 797,072.46 and 157,408 is: 236,071.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,472.48 : 797,072.46 = 157,408 : x
  2. Step 2: Convert to fraction form
    531,472.48/797,072.46 = 157,408/x
  3. Step 3: Cross multiply
    531,472.48x = 797,072.46 × 157,408
  4. Step 4: Simplify right side
    531,472.48x = 125,465,581,783.68
  5. Step 5: Solve for x
    x = 125,465,581,783.68/531,472.48
  6. Step 6: Final answer
    x = 236,071.64

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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.