Home / 886,909.07-1,330,575.41-287,871.95

Finding the Fourth Proportional to 886,909.07, 1,330,575.41 and 287,871.95

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Solution

The fourth proportional to 886,909.07, 1,330,575.41 and 287,871.95 is: 431,876.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,909.07 : 1,330,575.41 = 287,871.95 : x
  2. Step 2: Convert to fraction form
    886,909.07/1,330,575.41 = 287,871.95/x
  3. Step 3: Cross multiply
    886,909.07x = 1,330,575.41 × 287,871.95
  4. Step 4: Simplify right side
    886,909.07x = 383,035,331,965.55
  5. Step 5: Solve for x
    x = 383,035,331,965.55/886,909.07
  6. Step 6: Final answer
    x = 431,876.67

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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.