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Finding the Fourth Proportional to 451,647.72, 623,228.94 and 260,722.62

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Solution

The fourth proportional to 451,647.72, 623,228.94 and 260,722.62 is: 359,771.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,647.72 : 623,228.94 = 260,722.62 : x
  2. Step 2: Convert to fraction form
    451,647.72/623,228.94 = 260,722.62/x
  3. Step 3: Cross multiply
    451,647.72x = 623,228.94 × 260,722.62
  4. Step 4: Simplify right side
    451,647.72x = 162,489,882,096.62
  5. Step 5: Solve for x
    x = 162,489,882,096.62/451,647.72
  6. Step 6: Final answer
    x = 359,771.29

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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.