Home / 639,766.34-882,877.83-353,305.88

Finding the Fourth Proportional to 639,766.34, 882,877.83 and 353,305.88

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Solution

The fourth proportional to 639,766.34, 882,877.83 and 353,305.88 is: 487,562.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,766.34 : 882,877.83 = 353,305.88 : x
  2. Step 2: Convert to fraction form
    639,766.34/882,877.83 = 353,305.88/x
  3. Step 3: Cross multiply
    639,766.34x = 882,877.83 × 353,305.88
  4. Step 4: Simplify right side
    639,766.34x = 311,925,928,660.64
  5. Step 5: Solve for x
    x = 311,925,928,660.64/639,766.34
  6. Step 6: Final answer
    x = 487,562.27

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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.