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Finding the Fourth Proportional to 524,125.20, 786,187.80 and 519,459.60

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Solution

The fourth proportional to 524,125.20, 786,187.80 and 519,459.60 is: 779,189.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,125.20 : 786,187.80 = 519,459.60 : x
  2. Step 2: Convert to fraction form
    524,125.20/786,187.80 = 519,459.60/x
  3. Step 3: Cross multiply
    524,125.20x = 786,187.80 × 519,459.60
  4. Step 4: Simplify right side
    524,125.20x = 408,392,800,112.88
  5. Step 5: Solve for x
    x = 408,392,800,112.88/524,125.20
  6. Step 6: Final answer
    x = 779,189.40

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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.