Home / 519,120.90-778,827.15-252,890.10

Finding the Fourth Proportional to 519,120.90, 778,827.15 and 252,890.10

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Solution

The fourth proportional to 519,120.90, 778,827.15 and 252,890.10 is: 379,406.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,120.90 : 778,827.15 = 252,890.10 : x
  2. Step 2: Convert to fraction form
    519,120.90/778,827.15 = 252,890.10/x
  3. Step 3: Cross multiply
    519,120.90x = 778,827.15 × 252,890.10
  4. Step 4: Simplify right side
    519,120.90x = 196,957,675,846.22
  5. Step 5: Solve for x
    x = 196,957,675,846.22/519,120.90
  6. Step 6: Final answer
    x = 379,406.18

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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.