Home / 891,644.08-1,230,286.92-528,909.04

Finding the Fourth Proportional to 891,644.08, 1,230,286.92 and 528,909.04

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Solution

The fourth proportional to 891,644.08, 1,230,286.92 and 528,909.04 is: 729,786.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,644.08 : 1,230,286.92 = 528,909.04 : x
  2. Step 2: Convert to fraction form
    891,644.08/1,230,286.92 = 528,909.04/x
  3. Step 3: Cross multiply
    891,644.08x = 1,230,286.92 × 528,909.04
  4. Step 4: Simplify right side
    891,644.08x = 650,709,873,781.76
  5. Step 5: Solve for x
    x = 650,709,873,781.76/891,644.08
  6. Step 6: Final answer
    x = 729,786.57

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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.