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Finding the Fourth Proportional to 589,617.20, 884,425.80 and 449,649.20

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Solution

The fourth proportional to 589,617.20, 884,425.80 and 449,649.20 is: 674,473.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,617.20 : 884,425.80 = 449,649.20 : x
  2. Step 2: Convert to fraction form
    589,617.20/884,425.80 = 449,649.20/x
  3. Step 3: Cross multiply
    589,617.20x = 884,425.80 × 449,649.20
  4. Step 4: Simplify right side
    589,617.20x = 397,681,353,429.36
  5. Step 5: Solve for x
    x = 397,681,353,429.36/589,617.20
  6. Step 6: Final answer
    x = 674,473.80

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Double scale
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Similar ratio
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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.