Home / 857,392.59-1,286,089.43-217,744.29

Finding the Fourth Proportional to 857,392.59, 1,286,089.43 and 217,744.29

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Solution

The fourth proportional to 857,392.59, 1,286,089.43 and 217,744.29 is: 326,616.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,392.59 : 1,286,089.43 = 217,744.29 : x
  2. Step 2: Convert to fraction form
    857,392.59/1,286,089.43 = 217,744.29/x
  3. Step 3: Cross multiply
    857,392.59x = 1,286,089.43 × 217,744.29
  4. Step 4: Simplify right side
    857,392.59x = 280,038,635,179.05
  5. Step 5: Solve for x
    x = 280,038,635,179.05/857,392.59
  6. Step 6: Final answer
    x = 326,616.58

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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.