Home / 693,173.56-1,039,859.40-213,441.88

Finding the Fourth Proportional to 693,173.56, 1,039,859.40 and 213,441.88

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Solution

The fourth proportional to 693,173.56, 1,039,859.40 and 213,441.88 is: 320,193.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,173.56 : 1,039,859.40 = 213,441.88 : x
  2. Step 2: Convert to fraction form
    693,173.56/1,039,859.40 = 213,441.88/x
  3. Step 3: Cross multiply
    693,173.56x = 1,039,859.40 × 213,441.88
  4. Step 4: Simplify right side
    693,173.56x = 221,949,545,271.67
  5. Step 5: Solve for x
    x = 221,949,545,271.67/693,173.56
  6. Step 6: Final answer
    x = 320,193.32

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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.