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Finding the Fourth Proportional to 432,003.70, 648,005.55 and 274,410.10

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Solution

The fourth proportional to 432,003.70, 648,005.55 and 274,410.10 is: 411,615.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,003.70 : 648,005.55 = 274,410.10 : x
  2. Step 2: Convert to fraction form
    432,003.70/648,005.55 = 274,410.10/x
  3. Step 3: Cross multiply
    432,003.70x = 648,005.55 × 274,410.10
  4. Step 4: Simplify right side
    432,003.70x = 177,819,267,776.06
  5. Step 5: Solve for x
    x = 177,819,267,776.06/432,003.70
  6. Step 6: Final answer
    x = 411,615.15

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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.