Home / 619,153.20-928,729.80-370,321.20

Finding the Fourth Proportional to 619,153.20, 928,729.80 and 370,321.20

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Solution

The fourth proportional to 619,153.20, 928,729.80 and 370,321.20 is: 555,481.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,153.20 : 928,729.80 = 370,321.20 : x
  2. Step 2: Convert to fraction form
    619,153.20/928,729.80 = 370,321.20/x
  3. Step 3: Cross multiply
    619,153.20x = 928,729.80 × 370,321.20
  4. Step 4: Simplify right side
    619,153.20x = 343,928,334,011.76
  5. Step 5: Solve for x
    x = 343,928,334,011.76/619,153.20
  6. Step 6: Final answer
    x = 555,481.80

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Similar ratio
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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.