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Finding the Fourth Proportional to 432,010.40, 648,015.60 and 414,514.40

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Solution

The fourth proportional to 432,010.40, 648,015.60 and 414,514.40 is: 621,771.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,010.40 : 648,015.60 = 414,514.40 : x
  2. Step 2: Convert to fraction form
    432,010.40/648,015.60 = 414,514.40/x
  3. Step 3: Cross multiply
    432,010.40x = 648,015.60 × 414,514.40
  4. Step 4: Simplify right side
    432,010.40x = 268,611,797,624.64
  5. Step 5: Solve for x
    x = 268,611,797,624.64/432,010.40
  6. Step 6: Final answer
    x = 621,771.60

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Similar ratio
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1.5x scale

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.