Home / 511,110.72-705,337.43-281,676.19

Finding the Fourth Proportional to 511,110.72, 705,337.43 and 281,676.19

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Solution

The fourth proportional to 511,110.72, 705,337.43 and 281,676.19 is: 388,715.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,110.72 : 705,337.43 = 281,676.19 : x
  2. Step 2: Convert to fraction form
    511,110.72/705,337.43 = 281,676.19/x
  3. Step 3: Cross multiply
    511,110.72x = 705,337.43 × 281,676.19
  4. Step 4: Simplify right side
    511,110.72x = 198,676,758,538.41
  5. Step 5: Solve for x
    x = 198,676,758,538.41/511,110.72
  6. Step 6: Final answer
    x = 388,715.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.