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Finding the Fourth Proportional to 516,403.80, 774,605.70 and 482,942.70

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Solution

The fourth proportional to 516,403.80, 774,605.70 and 482,942.70 is: 724,414.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,403.80 : 774,605.70 = 482,942.70 : x
  2. Step 2: Convert to fraction form
    516,403.80/774,605.70 = 482,942.70/x
  3. Step 3: Cross multiply
    516,403.80x = 774,605.70 × 482,942.70
  4. Step 4: Simplify right side
    516,403.80x = 374,090,168,193.39
  5. Step 5: Solve for x
    x = 374,090,168,193.39/516,403.80
  6. Step 6: Final answer
    x = 724,414.05

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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.