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Finding the Fourth Proportional to 524,019.20, 786,028.80 and 191,724.80

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Solution

The fourth proportional to 524,019.20, 786,028.80 and 191,724.80 is: 287,587.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,019.20 : 786,028.80 = 191,724.80 : x
  2. Step 2: Convert to fraction form
    524,019.20/786,028.80 = 191,724.80/x
  3. Step 3: Cross multiply
    524,019.20x = 786,028.80 × 191,724.80
  4. Step 4: Simplify right side
    524,019.20x = 150,701,214,474.24
  5. Step 5: Solve for x
    x = 150,701,214,474.24/524,019.20
  6. Step 6: Final answer
    x = 287,587.20

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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.