Home / 764,620.84-1,146,385.14-359,586.28

Finding the Fourth Proportional to 764,620.84, 1,146,385.14 and 359,586.28

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Solution

The fourth proportional to 764,620.84, 1,146,385.14 and 359,586.28 is: 539,122.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,620.84 : 1,146,385.14 = 359,586.28 : x
  2. Step 2: Convert to fraction form
    764,620.84/1,146,385.14 = 359,586.28/x
  3. Step 3: Cross multiply
    764,620.84x = 1,146,385.14 × 359,586.28
  4. Step 4: Simplify right side
    764,620.84x = 412,224,367,939.88
  5. Step 5: Solve for x
    x = 412,224,367,939.88/764,620.84
  6. Step 6: Final answer
    x = 539,122.59

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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.