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Finding the Fourth Proportional to 550,343.48, 825,515.21 and 550,343.48

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Solution

The fourth proportional to 550,343.48, 825,515.21 and 550,343.48 is: 825,515.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,343.48 : 825,515.21 = 550,343.48 : x
  2. Step 2: Convert to fraction form
    550,343.48/825,515.21 = 550,343.48/x
  3. Step 3: Cross multiply
    550,343.48x = 825,515.21 × 550,343.48
  4. Step 4: Simplify right side
    550,343.48x = 454,316,910,712.61
  5. Step 5: Solve for x
    x = 454,316,910,712.61/550,343.48
  6. Step 6: Final answer
    x = 825,515.21

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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.