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Finding the Fourth Proportional to 451,874.72, 623,609.75 and 258,292.42

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Solution

The fourth proportional to 451,874.72, 623,609.75 and 258,292.42 is: 356,456.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,874.72 : 623,609.75 = 258,292.42 : x
  2. Step 2: Convert to fraction form
    451,874.72/623,609.75 = 258,292.42/x
  3. Step 3: Cross multiply
    451,874.72x = 623,609.75 × 258,292.42
  4. Step 4: Simplify right side
    451,874.72x = 161,073,670,549.80
  5. Step 5: Solve for x
    x = 161,073,670,549.80/451,874.72
  6. Step 6: Final answer
    x = 356,456.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.