Home / 696,912.12-1,046,009.70-431,191.62

Finding the Fourth Proportional to 696,912.12, 1,046,009.70 and 431,191.62

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Solution

The fourth proportional to 696,912.12, 1,046,009.70 and 431,191.62 is: 647,184.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,912.12 : 1,046,009.70 = 431,191.62 : x
  2. Step 2: Convert to fraction form
    696,912.12/1,046,009.70 = 431,191.62/x
  3. Step 3: Cross multiply
    696,912.12x = 1,046,009.70 × 431,191.62
  4. Step 4: Simplify right side
    696,912.12x = 451,030,617,078.71
  5. Step 5: Solve for x
    x = 451,030,617,078.71/696,912.12
  6. Step 6: Final answer
    x = 647,184.35

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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.