Home / 612,949.66-845,987.03-383,613.55

Finding the Fourth Proportional to 612,949.66, 845,987.03 and 383,613.55

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Solution

The fourth proportional to 612,949.66, 845,987.03 and 383,613.55 is: 529,459.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,949.66 : 845,987.03 = 383,613.55 : x
  2. Step 2: Convert to fraction form
    612,949.66/845,987.03 = 383,613.55/x
  3. Step 3: Cross multiply
    612,949.66x = 845,987.03 × 383,613.55
  4. Step 4: Simplify right side
    612,949.66x = 324,532,087,832.26
  5. Step 5: Solve for x
    x = 324,532,087,832.26/612,949.66
  6. Step 6: Final answer
    x = 529,459.61

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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.