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Finding the Fourth Proportional to 561,676.13, 842,514.19 and 187,699.13

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Solution

The fourth proportional to 561,676.13, 842,514.19 and 187,699.13 is: 281,548.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,676.13 : 842,514.19 = 187,699.13 : x
  2. Step 2: Convert to fraction form
    561,676.13/842,514.19 = 187,699.13/x
  3. Step 3: Cross multiply
    561,676.13x = 842,514.19 × 187,699.13
  4. Step 4: Simplify right side
    561,676.13x = 158,139,175,793.84
  5. Step 5: Solve for x
    x = 158,139,175,793.84/561,676.13
  6. Step 6: Final answer
    x = 281,548.69

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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.