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Finding the Fourth Proportional to 590,801.76, 815,302.26 and 322,529.76

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Solution

The fourth proportional to 590,801.76, 815,302.26 and 322,529.76 is: 445,088.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,801.76 : 815,302.26 = 322,529.76 : x
  2. Step 2: Convert to fraction form
    590,801.76/815,302.26 = 322,529.76/x
  3. Step 3: Cross multiply
    590,801.76x = 815,302.26 × 322,529.76
  4. Step 4: Simplify right side
    590,801.76x = 262,959,242,245.26
  5. Step 5: Solve for x
    x = 262,959,242,245.26/590,801.76
  6. Step 6: Final answer
    x = 445,088.79

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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.