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Finding the Fourth Proportional to 590,938.80, 886,415.40 and 191,576.40

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Solution

The fourth proportional to 590,938.80, 886,415.40 and 191,576.40 is: 287,366.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,938.80 : 886,415.40 = 191,576.40 : x
  2. Step 2: Convert to fraction form
    590,938.80/886,415.40 = 191,576.40/x
  3. Step 3: Cross multiply
    590,938.80x = 886,415.40 × 191,576.40
  4. Step 4: Simplify right side
    590,938.80x = 169,816,271,236.56
  5. Step 5: Solve for x
    x = 169,816,271,236.56/590,938.80
  6. Step 6: Final answer
    x = 287,366.93

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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.