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Finding the Fourth Proportional to 551,088.70, 826,633.05 and 362,131.90

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Solution

The fourth proportional to 551,088.70, 826,633.05 and 362,131.90 is: 543,197.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,088.70 : 826,633.05 = 362,131.90 : x
  2. Step 2: Convert to fraction form
    551,088.70/826,633.05 = 362,131.90/x
  3. Step 3: Cross multiply
    551,088.70x = 826,633.05 × 362,131.90
  4. Step 4: Simplify right side
    551,088.70x = 299,350,196,999.30
  5. Step 5: Solve for x
    x = 299,350,196,999.30/551,088.70
  6. Step 6: Final answer
    x = 543,197.85

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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.