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Finding the Fourth Proportional to 531,362.34, 797,054.46 and 215,603.28

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Solution

The fourth proportional to 531,362.34, 797,054.46 and 215,603.28 is: 323,409.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,362.34 : 797,054.46 = 215,603.28 : x
  2. Step 2: Convert to fraction form
    531,362.34/797,054.46 = 215,603.28/x
  3. Step 3: Cross multiply
    531,362.34x = 797,054.46 × 215,603.28
  4. Step 4: Simplify right side
    531,362.34x = 171,847,555,914.63
  5. Step 5: Solve for x
    x = 171,847,555,914.63/531,362.34
  6. Step 6: Final answer
    x = 323,409.36

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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.