Home / 511,057.08-705,290.13-281,614.23

Finding the Fourth Proportional to 511,057.08, 705,290.13 and 281,614.23

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Solution

The fourth proportional to 511,057.08, 705,290.13 and 281,614.23 is: 388,644.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,057.08 : 705,290.13 = 281,614.23 : x
  2. Step 2: Convert to fraction form
    511,057.08/705,290.13 = 281,614.23/x
  3. Step 3: Cross multiply
    511,057.08x = 705,290.13 × 281,614.23
  4. Step 4: Simplify right side
    511,057.08x = 198,619,736,886.55
  5. Step 5: Solve for x
    x = 198,619,736,886.55/511,057.08
  6. Step 6: Final answer
    x = 388,644.92

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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.