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Finding the Fourth Proportional to 579,698.62, 799,983.36 and 321,614.72

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Solution

The fourth proportional to 579,698.62, 799,983.36 and 321,614.72 is: 443,827.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,698.62 : 799,983.36 = 321,614.72 : x
  2. Step 2: Convert to fraction form
    579,698.62/799,983.36 = 321,614.72/x
  3. Step 3: Cross multiply
    579,698.62x = 799,983.36 × 321,614.72
  4. Step 4: Simplify right side
    579,698.62x = 257,286,424,331.06
  5. Step 5: Solve for x
    x = 257,286,424,331.06/579,698.62
  6. Step 6: Final answer
    x = 443,827.91

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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.