Home / 639,527.05-882,550.15-353,049.49

Finding the Fourth Proportional to 639,527.05, 882,550.15 and 353,049.49

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Solution

The fourth proportional to 639,527.05, 882,550.15 and 353,049.49 is: 487,209.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,527.05 : 882,550.15 = 353,049.49 : x
  2. Step 2: Convert to fraction form
    639,527.05/882,550.15 = 353,049.49/x
  3. Step 3: Cross multiply
    639,527.05x = 882,550.15 × 353,049.49
  4. Step 4: Simplify right side
    639,527.05x = 311,583,883,004.61
  5. Step 5: Solve for x
    x = 311,583,883,004.61/639,527.05
  6. Step 6: Final answer
    x = 487,209.86

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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.