Home / 753,451.50-1,039,763.49-413,941.62

Finding the Fourth Proportional to 753,451.50, 1,039,763.49 and 413,941.62

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Solution

The fourth proportional to 753,451.50, 1,039,763.49 and 413,941.62 is: 571,239.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,451.50 : 1,039,763.49 = 413,941.62 : x
  2. Step 2: Convert to fraction form
    753,451.50/1,039,763.49 = 413,941.62/x
  3. Step 3: Cross multiply
    753,451.50x = 1,039,763.49 × 413,941.62
  4. Step 4: Simplify right side
    753,451.50x = 430,401,383,467.45
  5. Step 5: Solve for x
    x = 430,401,383,467.45/753,451.50
  6. Step 6: Final answer
    x = 571,239.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.