Home / 517,757.74-776,938.47-218,219.74

Finding the Fourth Proportional to 517,757.74, 776,938.47 and 218,219.74

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Solution

The fourth proportional to 517,757.74, 776,938.47 and 218,219.74 is: 327,456.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,757.74 : 776,938.47 = 218,219.74 : x
  2. Step 2: Convert to fraction form
    517,757.74/776,938.47 = 218,219.74/x
  3. Step 3: Cross multiply
    517,757.74x = 776,938.47 × 218,219.74
  4. Step 4: Simplify right side
    517,757.74x = 169,543,310,919.40
  5. Step 5: Solve for x
    x = 169,543,310,919.40/517,757.74
  6. Step 6: Final answer
    x = 327,456.84

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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.