Home / 696,780.20-1,039,593.43-621,000.65

Finding the Fourth Proportional to 696,780.20, 1,039,593.43 and 621,000.65

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Solution

The fourth proportional to 696,780.20, 1,039,593.43 and 621,000.65 is: 926,530.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,780.20 : 1,039,593.43 = 621,000.65 : x
  2. Step 2: Convert to fraction form
    696,780.20/1,039,593.43 = 621,000.65/x
  3. Step 3: Cross multiply
    696,780.20x = 1,039,593.43 × 621,000.65
  4. Step 4: Simplify right side
    696,780.20x = 645,588,195,765.73
  5. Step 5: Solve for x
    x = 645,588,195,765.73/696,780.20
  6. Step 6: Final answer
    x = 926,530.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.