Home / 693,776.20-1,040,664.30-525,814.60

Finding the Fourth Proportional to 693,776.20, 1,040,664.30 and 525,814.60

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Solution

The fourth proportional to 693,776.20, 1,040,664.30 and 525,814.60 is: 788,721.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,776.20 : 1,040,664.30 = 525,814.60 : x
  2. Step 2: Convert to fraction form
    693,776.20/1,040,664.30 = 525,814.60/x
  3. Step 3: Cross multiply
    693,776.20x = 1,040,664.30 × 525,814.60
  4. Step 4: Simplify right side
    693,776.20x = 547,196,482,638.78
  5. Step 5: Solve for x
    x = 547,196,482,638.78/693,776.20
  6. Step 6: Final answer
    x = 788,721.90

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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.