Home / 551,439.20-827,158.80-528,111.20

Finding the Fourth Proportional to 551,439.20, 827,158.80 and 528,111.20

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Solution

The fourth proportional to 551,439.20, 827,158.80 and 528,111.20 is: 792,166.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,439.20 : 827,158.80 = 528,111.20 : x
  2. Step 2: Convert to fraction form
    551,439.20/827,158.80 = 528,111.20/x
  3. Step 3: Cross multiply
    551,439.20x = 827,158.80 × 528,111.20
  4. Step 4: Simplify right side
    551,439.20x = 436,831,826,458.56
  5. Step 5: Solve for x
    x = 436,831,826,458.56/551,439.20
  6. Step 6: Final answer
    x = 792,166.80

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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.