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Finding the Fourth Proportional to 451,647.22, 623,228.24 and 260,722.12

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Solution

The fourth proportional to 451,647.22, 623,228.24 and 260,722.12 is: 359,770.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,647.22 : 623,228.24 = 260,722.12 : x
  2. Step 2: Convert to fraction form
    451,647.22/623,228.24 = 260,722.12/x
  3. Step 3: Cross multiply
    451,647.22x = 623,228.24 × 260,722.12
  4. Step 4: Simplify right side
    451,647.22x = 162,489,387,976.67
  5. Step 5: Solve for x
    x = 162,489,387,976.67/451,647.22
  6. Step 6: Final answer
    x = 359,770.59

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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.