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Finding the Fourth Proportional to 734,728.80, 1,099,990.80 and 452,344.80

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Solution

The fourth proportional to 734,728.80, 1,099,990.80 and 452,344.80 is: 677,222.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,728.80 : 1,099,990.80 = 452,344.80 : x
  2. Step 2: Convert to fraction form
    734,728.80/1,099,990.80 = 452,344.80/x
  3. Step 3: Cross multiply
    734,728.80x = 1,099,990.80 × 452,344.80
  4. Step 4: Simplify right side
    734,728.80x = 497,575,118,427.84
  5. Step 5: Solve for x
    x = 497,575,118,427.84/734,728.80
  6. Step 6: Final answer
    x = 677,222.83

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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.