Home / 439,191.56-658,489.26-139,582.28

Finding the Fourth Proportional to 439,191.56, 658,489.26 and 139,582.28

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Solution

The fourth proportional to 439,191.56, 658,489.26 and 139,582.28 is: 209,278.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,191.56 : 658,489.26 = 139,582.28 : x
  2. Step 2: Convert to fraction form
    439,191.56/658,489.26 = 139,582.28/x
  3. Step 3: Cross multiply
    439,191.56x = 658,489.26 × 139,582.28
  4. Step 4: Simplify right side
    439,191.56x = 91,913,432,266.31
  5. Step 5: Solve for x
    x = 91,913,432,266.31/439,191.56
  6. Step 6: Final answer
    x = 209,278.69

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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.