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Finding the Fourth Proportional to 561,676.38, 842,514.57 and 187,699.38

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Solution

The fourth proportional to 561,676.38, 842,514.57 and 187,699.38 is: 281,549.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,676.38 : 842,514.57 = 187,699.38 : x
  2. Step 2: Convert to fraction form
    561,676.38/842,514.57 = 187,699.38/x
  3. Step 3: Cross multiply
    561,676.38x = 842,514.57 × 187,699.38
  4. Step 4: Simplify right side
    561,676.38x = 158,139,457,278.90
  5. Step 5: Solve for x
    x = 158,139,457,278.90/561,676.38
  6. Step 6: Final answer
    x = 281,549.06

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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.