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Finding the Fourth Proportional to 576,035.10, 864,052.65 and 520,047.90

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Solution

The fourth proportional to 576,035.10, 864,052.65 and 520,047.90 is: 780,071.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,035.10 : 864,052.65 = 520,047.90 : x
  2. Step 2: Convert to fraction form
    576,035.10/864,052.65 = 520,047.90/x
  3. Step 3: Cross multiply
    576,035.10x = 864,052.65 × 520,047.90
  4. Step 4: Simplify right side
    576,035.10x = 449,348,766,121.94
  5. Step 5: Solve for x
    x = 449,348,766,121.94/576,035.10
  6. Step 6: Final answer
    x = 780,071.85

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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.