Home / 511,336.21-705,646.12-281,888.24

Finding the Fourth Proportional to 511,336.21, 705,646.12 and 281,888.24

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Solution

The fourth proportional to 511,336.21, 705,646.12 and 281,888.24 is: 389,006.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,336.21 : 705,646.12 = 281,888.24 : x
  2. Step 2: Convert to fraction form
    511,336.21/705,646.12 = 281,888.24/x
  3. Step 3: Cross multiply
    511,336.21x = 705,646.12 × 281,888.24
  4. Step 4: Simplify right side
    511,336.21x = 198,913,342,829.63
  5. Step 5: Solve for x
    x = 198,913,342,829.63/511,336.21
  6. Step 6: Final answer
    x = 389,006.96

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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.