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Finding the Fourth Proportional to 550,168.60, 826,565.10 and 492,431.80

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Solution

The fourth proportional to 550,168.60, 826,565.10 and 492,431.80 is: 739,822.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,168.60 : 826,565.10 = 492,431.80 : x
  2. Step 2: Convert to fraction form
    550,168.60/826,565.10 = 492,431.80/x
  3. Step 3: Cross multiply
    550,168.60x = 826,565.10 × 492,431.80
  4. Step 4: Simplify right side
    550,168.60x = 407,026,940,010.18
  5. Step 5: Solve for x
    x = 407,026,940,010.18/550,168.60
  6. Step 6: Final answer
    x = 739,822.19

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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.