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Finding the Fourth Proportional to 516,388.59, 774,284.90 and 200,476.44

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Solution

The fourth proportional to 516,388.59, 774,284.90 and 200,476.44 is: 300,598.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,388.59 : 774,284.90 = 200,476.44 : x
  2. Step 2: Convert to fraction form
    516,388.59/774,284.90 = 200,476.44/x
  3. Step 3: Cross multiply
    516,388.59x = 774,284.90 × 200,476.44
  4. Step 4: Simplify right side
    516,388.59x = 155,225,879,295.37
  5. Step 5: Solve for x
    x = 155,225,879,295.37/516,388.59
  6. Step 6: Final answer
    x = 300,598.97

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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.