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Finding the Fourth Proportional to 541,105.10, 811,768.35 and 186,073.01

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Solution

The fourth proportional to 541,105.10, 811,768.35 and 186,073.01 is: 279,147.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,105.10 : 811,768.35 = 186,073.01 : x
  2. Step 2: Convert to fraction form
    541,105.10/811,768.35 = 186,073.01/x
  3. Step 3: Cross multiply
    541,105.10x = 811,768.35 × 186,073.01
  4. Step 4: Simplify right side
    541,105.10x = 151,048,176,248.39
  5. Step 5: Solve for x
    x = 151,048,176,248.39/541,105.10
  6. Step 6: Final answer
    x = 279,147.58

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Double scale
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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.