Home / 511,016.18-705,193.03-281,594.64

Finding the Fourth Proportional to 511,016.18, 705,193.03 and 281,594.64

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Solution

The fourth proportional to 511,016.18, 705,193.03 and 281,594.64 is: 388,595.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,016.18 : 705,193.03 = 281,594.64 : x
  2. Step 2: Convert to fraction form
    511,016.18/705,193.03 = 281,594.64/x
  3. Step 3: Cross multiply
    511,016.18x = 705,193.03 × 281,594.64
  4. Step 4: Simplify right side
    511,016.18x = 198,578,574,859.15
  5. Step 5: Solve for x
    x = 198,578,574,859.15/511,016.18
  6. Step 6: Final answer
    x = 388,595.48

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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.