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Finding the Fourth Proportional to 5,678,666.38, 7,836,519.03 and 3,100,347.07

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Solution

The fourth proportional to 5,678,666.38, 7,836,519.03 and 3,100,347.07 is: 4,278,456.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678,666.38 : 7,836,519.03 = 3,100,347.07 : x
  2. Step 2: Convert to fraction form
    5,678,666.38/7,836,519.03 = 3,100,347.07/x
  3. Step 3: Cross multiply
    5,678,666.38x = 7,836,519.03 × 3,100,347.07
  4. Step 4: Simplify right side
    5,678,666.38x = 24,295,928,813,659.74
  5. Step 5: Solve for x
    x = 24,295,928,813,659.74/5,678,666.38
  6. Step 6: Final answer
    x = 4,278,456.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.