Home / 1,118,914.56-1,678,786.56-520,197.12

Finding the Fourth Proportional to 1,118,914.56, 1,678,786.56 and 520,197.12

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Solution

The fourth proportional to 1,118,914.56, 1,678,786.56 and 520,197.12 is: 780,488.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,914.56 : 1,678,786.56 = 520,197.12 : x
  2. Step 2: Convert to fraction form
    1,118,914.56/1,678,786.56 = 520,197.12/x
  3. Step 3: Cross multiply
    1,118,914.56x = 1,678,786.56 × 520,197.12
  4. Step 4: Simplify right side
    1,118,914.56x = 873,299,933,606.71
  5. Step 5: Solve for x
    x = 873,299,933,606.71/1,118,914.56
  6. Step 6: Final answer
    x = 780,488.49

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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.