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Finding the Fourth Proportional to 586,798.20, 879,938.10 and 231,694.20

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Solution

The fourth proportional to 586,798.20, 879,938.10 and 231,694.20 is: 347,438.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,798.20 : 879,938.10 = 231,694.20 : x
  2. Step 2: Convert to fraction form
    586,798.20/879,938.10 = 231,694.20/x
  3. Step 3: Cross multiply
    586,798.20x = 879,938.10 × 231,694.20
  4. Step 4: Simplify right side
    586,798.20x = 203,876,554,129.02
  5. Step 5: Solve for x
    x = 203,876,554,129.02/586,798.20
  6. Step 6: Final answer
    x = 347,438.96

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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.