Home / 615,695.44-923,835.32-426,446.80

Finding the Fourth Proportional to 615,695.44, 923,835.32 and 426,446.80

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Solution

The fourth proportional to 615,695.44, 923,835.32 and 426,446.80 is: 639,872.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,695.44 : 923,835.32 = 426,446.80 : x
  2. Step 2: Convert to fraction form
    615,695.44/923,835.32 = 426,446.80/x
  3. Step 3: Cross multiply
    615,695.44x = 923,835.32 × 426,446.80
  4. Step 4: Simplify right side
    615,695.44x = 393,966,615,940.98
  5. Step 5: Solve for x
    x = 393,966,615,940.98/615,695.44
  6. Step 6: Final answer
    x = 639,872.56

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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.