Home / 693,150.72-1,039,825.26-213,419.11

Finding the Fourth Proportional to 693,150.72, 1,039,825.26 and 213,419.11

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Solution

The fourth proportional to 693,150.72, 1,039,825.26 and 213,419.11 is: 320,159.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,150.72 : 1,039,825.26 = 213,419.11 : x
  2. Step 2: Convert to fraction form
    693,150.72/1,039,825.26 = 213,419.11/x
  3. Step 3: Cross multiply
    693,150.72x = 1,039,825.26 × 213,419.11
  4. Step 4: Simplify right side
    693,150.72x = 221,918,582,844.50
  5. Step 5: Solve for x
    x = 221,918,582,844.50/693,150.72
  6. Step 6: Final answer
    x = 320,159.20

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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.