Home / 693,457.20-1,040,185.80-646,801.20

Finding the Fourth Proportional to 693,457.20, 1,040,185.80 and 646,801.20

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Solution

The fourth proportional to 693,457.20, 1,040,185.80 and 646,801.20 is: 970,201.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,457.20 : 1,040,185.80 = 646,801.20 : x
  2. Step 2: Convert to fraction form
    693,457.20/1,040,185.80 = 646,801.20/x
  3. Step 3: Cross multiply
    693,457.20x = 1,040,185.80 × 646,801.20
  4. Step 4: Simplify right side
    693,457.20x = 672,793,423,662.96
  5. Step 5: Solve for x
    x = 672,793,423,662.96/693,457.20
  6. Step 6: Final answer
    x = 970,201.80

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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.