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Finding the Fourth Proportional to 472,087.04, 708,425.60 and 191,604.29

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Solution

The fourth proportional to 472,087.04, 708,425.60 and 191,604.29 is: 287,526.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,087.04 : 708,425.60 = 191,604.29 : x
  2. Step 2: Convert to fraction form
    472,087.04/708,425.60 = 191,604.29/x
  3. Step 3: Cross multiply
    472,087.04x = 708,425.60 × 191,604.29
  4. Step 4: Simplify right side
    472,087.04x = 135,737,379,605.68
  5. Step 5: Solve for x
    x = 135,737,379,605.68/472,087.04
  6. Step 6: Final answer
    x = 287,526.18

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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.