Home / 351,929.80-527,889.90-115,280.20

Finding the Fourth Proportional to 351,929.80, 527,889.90 and 115,280.20

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Solution

The fourth proportional to 351,929.80, 527,889.90 and 115,280.20 is: 172,918.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,929.80 : 527,889.90 = 115,280.20 : x
  2. Step 2: Convert to fraction form
    351,929.80/527,889.90 = 115,280.20/x
  3. Step 3: Cross multiply
    351,929.80x = 527,889.90 × 115,280.20
  4. Step 4: Simplify right side
    351,929.80x = 60,855,253,249.98
  5. Step 5: Solve for x
    x = 60,855,253,249.98/351,929.80
  6. Step 6: Final answer
    x = 172,918.73

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1.5x scale

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.