Home / 579,216.90-869,084.55-263,511.30

Finding the Fourth Proportional to 579,216.90, 869,084.55 and 263,511.30

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Solution

The fourth proportional to 579,216.90, 869,084.55 and 263,511.30 is: 395,384.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,216.90 : 869,084.55 = 263,511.30 : x
  2. Step 2: Convert to fraction form
    579,216.90/869,084.55 = 263,511.30/x
  3. Step 3: Cross multiply
    579,216.90x = 869,084.55 × 263,511.30
  4. Step 4: Simplify right side
    579,216.90x = 229,013,599,580.42
  5. Step 5: Solve for x
    x = 229,013,599,580.42/579,216.90
  6. Step 6: Final answer
    x = 395,384.87

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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.