Home / 434,540.20-651,810.30-154,085.80

Finding the Fourth Proportional to 434,540.20, 651,810.30 and 154,085.80

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Solution

The fourth proportional to 434,540.20, 651,810.30 and 154,085.80 is: 231,128.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,540.20 : 651,810.30 = 154,085.80 : x
  2. Step 2: Convert to fraction form
    434,540.20/651,810.30 = 154,085.80/x
  3. Step 3: Cross multiply
    434,540.20x = 651,810.30 × 154,085.80
  4. Step 4: Simplify right side
    434,540.20x = 100,434,711,523.74
  5. Step 5: Solve for x
    x = 100,434,711,523.74/434,540.20
  6. Step 6: Final answer
    x = 231,128.70

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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.