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Finding the Fourth Proportional to 329,083.20, 493,624.80 and 303,422.40

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Solution

The fourth proportional to 329,083.20, 493,624.80 and 303,422.40 is: 455,133.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,083.20 : 493,624.80 = 303,422.40 : x
  2. Step 2: Convert to fraction form
    329,083.20/493,624.80 = 303,422.40/x
  3. Step 3: Cross multiply
    329,083.20x = 493,624.80 × 303,422.40
  4. Step 4: Simplify right side
    329,083.20x = 149,776,821,515.52
  5. Step 5: Solve for x
    x = 149,776,821,515.52/329,083.20
  6. Step 6: Final answer
    x = 455,133.60

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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.