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Finding the Fourth Proportional to 492,587.82, 737,549.12 and 255,431.98

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Solution

The fourth proportional to 492,587.82, 737,549.12 and 255,431.98 is: 382,456.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,587.82 : 737,549.12 = 255,431.98 : x
  2. Step 2: Convert to fraction form
    492,587.82/737,549.12 = 255,431.98/x
  3. Step 3: Cross multiply
    492,587.82x = 737,549.12 × 255,431.98
  4. Step 4: Simplify right side
    492,587.82x = 188,393,632,068.86
  5. Step 5: Solve for x
    x = 188,393,632,068.86/492,587.82
  6. Step 6: Final answer
    x = 382,456.94

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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.