Home / 826,311.65-1,239,991.81-353,000.57

Finding the Fourth Proportional to 826,311.65, 1,239,991.81 and 353,000.57

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Solution

The fourth proportional to 826,311.65, 1,239,991.81 and 353,000.57 is: 529,724.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,311.65 : 1,239,991.81 = 353,000.57 : x
  2. Step 2: Convert to fraction form
    826,311.65/1,239,991.81 = 353,000.57/x
  3. Step 3: Cross multiply
    826,311.65x = 1,239,991.81 × 353,000.57
  4. Step 4: Simplify right side
    826,311.65x = 437,717,808,642.87
  5. Step 5: Solve for x
    x = 437,717,808,642.87/826,311.65
  6. Step 6: Final answer
    x = 529,724.85

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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.