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Finding the Fourth Proportional to 550,343.80, 825,515.70 and 461,770.30

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Solution

The fourth proportional to 550,343.80, 825,515.70 and 461,770.30 is: 692,655.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,343.80 : 825,515.70 = 461,770.30 : x
  2. Step 2: Convert to fraction form
    550,343.80/825,515.70 = 461,770.30/x
  3. Step 3: Cross multiply
    550,343.80x = 825,515.70 × 461,770.30
  4. Step 4: Simplify right side
    550,343.80x = 381,198,632,443.71
  5. Step 5: Solve for x
    x = 381,198,632,443.71/550,343.80
  6. Step 6: Final answer
    x = 692,655.45

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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.