Home / 712,101.20-1,066,769.40-395,992.40

Finding the Fourth Proportional to 712,101.20, 1,066,769.40 and 395,992.40

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Solution

The fourth proportional to 712,101.20, 1,066,769.40 and 395,992.40 is: 593,219.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,101.20 : 1,066,769.40 = 395,992.40 : x
  2. Step 2: Convert to fraction form
    712,101.20/1,066,769.40 = 395,992.40/x
  3. Step 3: Cross multiply
    712,101.20x = 1,066,769.40 × 395,992.40
  4. Step 4: Simplify right side
    712,101.20x = 422,432,574,952.56
  5. Step 5: Solve for x
    x = 422,432,574,952.56/712,101.20
  6. Step 6: Final answer
    x = 593,219.86

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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.