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Finding the Fourth Proportional to 353,228.56, 528,684.54 and 193,059.16

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Solution

The fourth proportional to 353,228.56, 528,684.54 and 193,059.16 is: 288,955.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,228.56 : 528,684.54 = 193,059.16 : x
  2. Step 2: Convert to fraction form
    353,228.56/528,684.54 = 193,059.16/x
  3. Step 3: Cross multiply
    353,228.56x = 528,684.54 × 193,059.16
  4. Step 4: Simplify right side
    353,228.56x = 102,067,393,197.39
  5. Step 5: Solve for x
    x = 102,067,393,197.39/353,228.56
  6. Step 6: Final answer
    x = 288,955.66

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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.