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Finding the Fourth Proportional to 421,654.46, 632,689.46 and 197,030.42

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Solution

The fourth proportional to 421,654.46, 632,689.46 and 197,030.42 is: 295,642.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,654.46 : 632,689.46 = 197,030.42 : x
  2. Step 2: Convert to fraction form
    421,654.46/632,689.46 = 197,030.42/x
  3. Step 3: Cross multiply
    421,654.46x = 632,689.46 × 197,030.42
  4. Step 4: Simplify right side
    421,654.46x = 124,659,070,033.37
  5. Step 5: Solve for x
    x = 124,659,070,033.37/421,654.46
  6. Step 6: Final answer
    x = 295,642.72

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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.