Home / 709,855.20-1,065,560.40-394,927.20

Finding the Fourth Proportional to 709,855.20, 1,065,560.40 and 394,927.20

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Solution

The fourth proportional to 709,855.20, 1,065,560.40 and 394,927.20 is: 592,823.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,855.20 : 1,065,560.40 = 394,927.20 : x
  2. Step 2: Convert to fraction form
    709,855.20/1,065,560.40 = 394,927.20/x
  3. Step 3: Cross multiply
    709,855.20x = 1,065,560.40 × 394,927.20
  4. Step 4: Simplify right side
    709,855.20x = 420,818,785,202.88
  5. Step 5: Solve for x
    x = 420,818,785,202.88/709,855.20
  6. Step 6: Final answer
    x = 592,823.42

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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.