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Finding the Fourth Proportional to 541,359.72, 812,035.94 and 423,130.50

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Solution

The fourth proportional to 541,359.72, 812,035.94 and 423,130.50 is: 634,692.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,359.72 : 812,035.94 = 423,130.50 : x
  2. Step 2: Convert to fraction form
    541,359.72/812,035.94 = 423,130.50/x
  3. Step 3: Cross multiply
    541,359.72x = 812,035.94 × 423,130.50
  4. Step 4: Simplify right side
    541,359.72x = 343,597,171,194.52
  5. Step 5: Solve for x
    x = 343,597,171,194.52/541,359.72
  6. Step 6: Final answer
    x = 634,692.90

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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.