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Finding the Fourth Proportional to 451,607.80, 677,411.70 and 151,988.80

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Solution

The fourth proportional to 451,607.80, 677,411.70 and 151,988.80 is: 227,983.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,607.80 : 677,411.70 = 151,988.80 : x
  2. Step 2: Convert to fraction form
    451,607.80/677,411.70 = 151,988.80/x
  3. Step 3: Cross multiply
    451,607.80x = 677,411.70 × 151,988.80
  4. Step 4: Simplify right side
    451,607.80x = 102,958,991,388.96
  5. Step 5: Solve for x
    x = 102,958,991,388.96/451,607.80
  6. Step 6: Final answer
    x = 227,983.20

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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.