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Finding the Fourth Proportional to 590,420.70, 885,631.05 and 541,431.90

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Solution

The fourth proportional to 590,420.70, 885,631.05 and 541,431.90 is: 812,147.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,420.70 : 885,631.05 = 541,431.90 : x
  2. Step 2: Convert to fraction form
    590,420.70/885,631.05 = 541,431.90/x
  3. Step 3: Cross multiply
    590,420.70x = 885,631.05 × 541,431.90
  4. Step 4: Simplify right side
    590,420.70x = 479,508,902,100.50
  5. Step 5: Solve for x
    x = 479,508,902,100.50/590,420.70
  6. Step 6: Final answer
    x = 812,147.85

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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.