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Finding the Fourth Proportional to 561,322.20, 841,983.30 and 384,175.20

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Solution

The fourth proportional to 561,322.20, 841,983.30 and 384,175.20 is: 576,262.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,322.20 : 841,983.30 = 384,175.20 : x
  2. Step 2: Convert to fraction form
    561,322.20/841,983.30 = 384,175.20/x
  3. Step 3: Cross multiply
    561,322.20x = 841,983.30 × 384,175.20
  4. Step 4: Simplify right side
    561,322.20x = 323,469,102,674.16
  5. Step 5: Solve for x
    x = 323,469,102,674.16/561,322.20
  6. Step 6: Final answer
    x = 576,262.80

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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.