Home / 813,615.51-1,220,626.54-574,196.88

Finding the Fourth Proportional to 813,615.51, 1,220,626.54 and 574,196.88

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Solution

The fourth proportional to 813,615.51, 1,220,626.54 and 574,196.88 is: 861,438.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,615.51 : 1,220,626.54 = 574,196.88 : x
  2. Step 2: Convert to fraction form
    813,615.51/1,220,626.54 = 574,196.88/x
  3. Step 3: Cross multiply
    813,615.51x = 1,220,626.54 × 574,196.88
  4. Step 4: Simplify right side
    813,615.51x = 700,879,950,913.20
  5. Step 5: Solve for x
    x = 700,879,950,913.20/813,615.51
  6. Step 6: Final answer
    x = 861,438.78

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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.